chore(deps): bump actions/checkout from 4 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 6. - [Release notes](https://github.com/actions/checkout/releases) - [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md) - [Commits](https://github.com/actions/checkout/compare/v4...v6) --- updated-dependencies: - dependency-name: actions/checkout dependency-version: '6' dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com>
feat(ADR-262 P3): live /api/field + /ws/field — RuView sensing speaks RuField (fail-closed egress) (#1071 )
2026-06-15 11:13:20 +00:00 · 2026-06-14 17:58:17 +00:00 · 2026-06-14 13:55:41 -04:00 · 2026-06-14 12:46:58 -04:00 · 2026-06-14 12:03:16 -04:00
40 changed files with 2008 additions and 54 deletions
@@ -32,7 +32,9 @@ jobs:
      run:
        working-directory: v2
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive

      - name: Install Rust toolchain
        run: rustup show && rustc --version
@@ -52,7 +52,9 @@ jobs:

    steps:
      - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
+        with:
+          submodules: recursive

      - name: Install Rust toolchain
        uses: dtolnay/rust-toolchain@stable
@@ -41,7 +41,9 @@ jobs:
      image_tag: ${{ steps.determine-tag.outputs.tag }}
    steps:
    - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
+      with:
+        submodules: recursive

    - name: Determine deployment environment
      id: determine-env
@@ -85,7 +87,9 @@ jobs:
      url: https://staging.wifi-densepose.com
    steps:
    - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
+      with:
+        submodules: recursive

    - name: Set up kubectl
      uses: azure/setup-kubectl@v3
@@ -131,7 +135,9 @@ jobs:
      url: https://wifi-densepose.com
    steps:
    - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
+      with:
+        submodules: recursive

    - name: Set up kubectl
      uses: azure/setup-kubectl@v3
@@ -27,8 +27,9 @@ jobs:
    steps:
    - name: Checkout code
      continue-on-error: true
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
      with:
+        submodules: recursive
        fetch-depth: 0

    - name: Set up Python
@@ -81,7 +82,14 @@ jobs:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
+      with:
+        submodules: recursive
+      # ADR-262 P1: `wifi-densepose-rufield` path-deps the `vendor/rufield`
+      # submodule. Without a recursive checkout the workspace build fails to
+      # resolve those path deps in CI even though it passes locally.
+      with:
+        submodules: recursive

    # `wifi-densepose-desktop` is a Tauri v2 app — `glib-sys`, `gtk-sys`,
    # `webkit2gtk-sys`, etc. need the Linux dev libraries via pkg-config or the
@@ -201,7 +209,9 @@ jobs:
    steps:
    - name: Checkout code
      continue-on-error: true
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
+      with:
+        submodules: recursive

    - name: Set up Python ${{ matrix.python-version }}
      continue-on-error: true
@@ -266,7 +276,9 @@ jobs:
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    steps:
    - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
+      with:
+        submodules: recursive

    - name: Set up Python
      uses: actions/setup-python@v6
@@ -334,7 +346,9 @@ jobs:
    steps:
    - name: Checkout code
      continue-on-error: true
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
+      with:
+        submodules: recursive

    - name: Set up Docker Buildx
      continue-on-error: true
@@ -406,7 +420,9 @@ jobs:
      contents: write   # gh-pages deploy needs write (GITHUB_TOKEN is read-only by default -> 403)
    steps:
    - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
+      with:
+        submodules: recursive

    - name: Set up Python
      uses: actions/setup-python@v6
@@ -34,7 +34,9 @@ jobs:
  snapshot:
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive

      - name: Fetch /traffic/clones + /traffic/views from GitHub
        env:
@@ -27,7 +27,9 @@ jobs:
    name: Build x86_64
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive

      - name: Setup Rust
        uses: dtolnay/rust-toolchain@stable
@@ -77,7 +79,9 @@ jobs:
    name: Build aarch64 (arm)
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive

      - name: Setup Rust
        uses: dtolnay/rust-toolchain@stable
@@ -144,7 +148,9 @@ jobs:
      github.event_name == 'push' &&
      vars.HAS_GCP_CREDENTIALS == 'true'
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive

      - name: Download x86_64 artifact
        uses: actions/download-artifact@v4
@@ -19,7 +19,9 @@ jobs:
  a11y:
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive

      - uses: dtolnay/rust-toolchain@stable
        with: { targets: wasm32-unknown-unknown }
@@ -25,7 +25,9 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout main
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
+        with:
+          submodules: recursive

      - name: Install Rust + wasm32 target
        uses: dtolnay/rust-toolchain@stable
@@ -27,7 +27,9 @@ jobs:
        target: [aarch64-apple-darwin, x86_64-apple-darwin]
    steps:
      - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
+        with:
+          submodules: recursive

      - name: Setup Node.js
        uses: actions/setup-node@v6
@@ -82,7 +84,9 @@ jobs:
    runs-on: windows-latest
    steps:
      - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
+        with:
+          submodules: recursive

      - name: Setup Node.js
        uses: actions/setup-node@v6
@@ -130,7 +134,9 @@ jobs:
      contents: write
    steps:
      - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
+        with:
+          submodules: recursive

      - name: Download all artifacts
        uses: actions/download-artifact@v4
@@ -21,7 +21,9 @@ jobs:
    runs-on: ubuntu-latest
    if: github.ref_type == 'tag'
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive
      - name: Check firmware version.txt == tag
        run: |
          # Tag form: vX.Y.Z-esp32  →  expect version.txt to contain X.Y.Z
@@ -70,7 +72,9 @@ jobs:
            artifact_pt: partition-table-c6.bin

    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive

      - name: Build firmware (${{ matrix.variant }})
        working-directory: firmware/esp32-csi-node
@@ -99,7 +99,9 @@ jobs:
          - boundary-min

    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive

      - name: Download QEMU artifact
        uses: actions/download-artifact@v4
@@ -213,7 +215,9 @@ jobs:
    name: Fuzz Testing (ADR-061 Layer 6)
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive

      - name: Install clang
        run: |
@@ -262,7 +266,9 @@ jobs:
    name: NVS Matrix Generation
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive

      - name: Install NVS generator
        run: pip install esp-idf-nvs-partition-gen
@@ -316,7 +322,9 @@ jobs:
      image: espressif/idf:v5.4

    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive

      - name: Download QEMU artifact
        uses: actions/download-artifact@v4
@@ -21,7 +21,9 @@ jobs:
    name: Verify fix markers
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive

      - uses: actions/setup-python@v6
        with:
@@ -40,7 +40,9 @@ jobs:
      RUST_BACKTRACE: 1

    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive

      - name: Install mosquitto + clients and start with allow_anonymous
        run: |
@@ -25,7 +25,9 @@ jobs:
  build-and-publish:
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive

      - uses: docker/setup-buildx-action@v3

@@ -75,7 +75,9 @@ jobs:
            arch: AMD64
    runs-on: ${{ matrix.os }}
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive

      # Linux aarch64 needs QEMU for cross-build on x86_64 runners.
      - name: Set up QEMU
@@ -120,7 +122,9 @@ jobs:
      startsWith(github.ref, 'refs/tags/v2.')
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive
      - name: Install maturin
        run: pip install maturin>=1.7
      - name: Build sdist
@@ -143,7 +147,9 @@ jobs:
      startsWith(github.ref, 'refs/tags/v1.99')
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive
      - uses: actions/setup-python@v5
        with:
          python-version: '3.12'
@@ -28,7 +28,9 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout main
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
+        with:
+          submodules: recursive

      - name: Stage viewer for Pages
        run: |
@@ -39,7 +39,9 @@ jobs:
          - { label: 'ruflo+itar',       flags: '--features ruflo,itar-unrestricted' }
          - { label: 'full+train',       flags: '--features full,train' }
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive
      - uses: dtolnay/rust-toolchain@stable
      - name: Cache cargo
        uses: actions/cache@v4
@@ -59,7 +61,9 @@ jobs:
    name: clippy (-D warnings, --no-deps)
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive
      # v2/rust-toolchain.toml pins channel "1.89" with profile "minimal" (no
      # clippy). dtolnay@stable installs clippy on the floating "stable"
      # toolchain, but the override makes cargo use the separate "1.89"
@@ -92,7 +96,9 @@ jobs:
    name: build train_marl bin
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive
      - uses: dtolnay/rust-toolchain@stable
      - name: Cache cargo
        uses: actions/cache@v4
@@ -126,7 +132,9 @@ jobs:
    name: ITAR / publish guard
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive
      - name: publish = false is present (no accidental crates.io publish)
        run: |
          CARGO=v2/crates/ruview-swarm/Cargo.toml
@@ -26,8 +26,9 @@ jobs:
    steps:
    - name: Checkout code
      continue-on-error: true
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
      with:
+        submodules: recursive
        fetch-depth: 0

    - name: Set up Python
@@ -96,7 +97,9 @@ jobs:
    steps:
    - name: Checkout code
      continue-on-error: true
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
+      with:
+        submodules: recursive

    - name: Set up Python
      continue-on-error: true
@@ -163,7 +166,9 @@ jobs:
    steps:
    - name: Checkout code
      continue-on-error: true
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
+      with:
+        submodules: recursive

    - name: Set up Docker Buildx
      continue-on-error: true
@@ -244,7 +249,9 @@ jobs:
    steps:
    - name: Checkout code
      continue-on-error: true
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
+      with:
+        submodules: recursive

    - name: Run Checkov IaC scan
      continue-on-error: true
@@ -305,8 +312,9 @@ jobs:
    steps:
    - name: Checkout code
      continue-on-error: true
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
      with:
+        submodules: recursive
        fetch-depth: 0

    - name: Run TruffleHog secret scan
@@ -340,7 +348,9 @@ jobs:
    steps:
    - name: Checkout code
      continue-on-error: true
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
+      with:
+        submodules: recursive

    - name: Set up Python
      continue-on-error: true
@@ -377,7 +387,9 @@ jobs:
    steps:
    - name: Checkout code
      continue-on-error: true
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
+      with:
+        submodules: recursive

    - name: Check security policy files
      continue-on-error: true
@@ -48,7 +48,7 @@ jobs:
    name: build · push · smoke-test
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
        with:
          submodules: recursive

@@ -29,7 +29,9 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout main
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
+        with:
+          submodules: recursive

      - name: Stage demos for Pages
        run: |
@@ -13,7 +13,7 @@ jobs:
  update:
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
        with:
          submodules: true
          fetch-depth: 0
@@ -29,7 +29,9 @@ jobs:

    steps:
      - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
+        with:
+          submodules: recursive

      - name: Set up Python ${{ matrix.python-version }}
        uses: actions/setup-python@v6
@@ -8,6 +8,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]

 ### Added
+- **ADR-262 P3 — live RuField surface: RuView's running sensing-server now speaks RuField on `/api/field` + `/ws/field`.** Wires the P1 `wifi-densepose-rufield` bridge into the live `wifi-densepose-sensing-server` (the bridge is the only added coupling, ADR-262 §5.4). A new `src/rufield_surface.rs` module (kept out of the 8k-line `main.rs`) holds a `FieldSurface` with a **dedicated ed25519 `Signer`**, a bounded ring buffer of recent signed events (`FIELD_RING_CAPACITY = 64`), and the `/ws/field` broadcast topic; it exposes `GET /api/field` (latest signed `FieldEvent`s + signer pubkey + a `dev_signing_key` flag) and `GET /ws/field` (per-cycle stream, mirroring `/ws/sensing`), plus a standalone `router()` for isolated testing. **Tap:** at the ESP32 governed-trust cycle (`main.rs` `observe_cycle` ~`:5886` / `SensingUpdate` build ~`:5938`), `emit_rufield_event` joins the cycle's real `SensingUpdate` (features/classification/signal_field) with the engine's recorded `effective_class`/`demoted` trust state into a `SensingSnapshot` and surfaces a signed `FieldEvent` — **existing endpoints (`/ws/sensing` etc.) are unchanged; this is purely additive.** **Signer (defers the P2 key decision, §8 Q1):** a **standalone dev/sensing key** from `WDP_RUFIELD_SIGNING_SEED` (64-hex or ≥32-byte value), else a deterministic dev default with a logged `WARN` — reusing the `cog-ha-matter` Ed25519 key is the deferred P2 call, so P3 does not pre-empt it. **Egress privacy (fail-closed):** `network_egress_allowed` is *stricter* than `DefaultPrivacyGuard` for an unattended live surface — only **P1/P2** leave the box; P0 (raw) and P3/P4/P5 are held edge-local, so a `Derived → P4/P5` cycle **never** surfaces; no-presence cycles emit **no phantom event**. **P3 acceptance gates (`tests/rufield_surface_test.rs`, 4 integration via `tower::oneshot` + 4 module unit, 0 failed):** a well-formed **signed** event (`Modality::WifiCsi`, P2 not P1, `is_fusable` ed25519-verified, real timestamp); empty cycle → no phantom; **privacy-safety** — an injected `Derived` trust never surfaces; a mixed stream surfaces only egress-safe events. **Honest scope (ADR-262 §0/§6):** real plumbing on a **live endpoint**, **NOT accuracy** — single-link CSI with its existing caveats (no validated room-coordinate accuracy — `field_localize`), a dedicated dev signing key pending the P2 ownership decision, no accuracy claim. The win is narrowly: "RuView's live sensing now speaks RuField on `/ws/field`."
+- **ADR-262 P1 — `wifi-densepose-rufield` anti-corruption bridge: RuView WiFi-CSI sensing → signed RuField `FieldEvent`s.** A new v2 workspace member (the *single coupling point* between RuView and the standalone RuField MFS spec, ADR-262 §5.4) that **path-deps** the `vendor/rufield` submodule crates (`rufield-core`/`-provenance`/`-privacy`/`-fusion` — pure-Rust, `--no-default-features`-buildable: serde/sha2/ed25519/toml only, no tch/openblas/ndarray/candle) and **no** RuView internal crate. The bridge takes owned primitives — `SensingSnapshot` mirrors the `/ws/sensing` `SensingUpdate` (features + classification + signal_field) joined with the `TrustedOutput` trust state (`trust_class`/`demoted`/`identity_bound`) — and `snapshot_to_field_event()` emits one **signed** `FieldEvent` (`Modality::WifiCsi`, axis `[Frequency]`): a real `FieldTensor` from the feature scalars with the real `timestamp_ns`; an `Observation` whose `range_m`/`motion_vector`/`space_cell` are derived from the strongest **signal-field peak** when present (else `None` — coordinates are **never fabricated**, per the `field_localize` caveat) and `confidence` from the classification; a real `ProvenanceRef` (sha256 over the tensor bytes, `synthetic=false`) **ed25519-signed** so `rufield_provenance::is_fusable` passes. **The §3.3 privacy mapping is the critical correctness item**, implemented as `map_privacy()` mapping RuView's class onto RuField P0–P5 **by information content, NEVER by byte value** and **fail-closed**: RuView `Derived` (byte `1`, which sorts *below* `Anonymous` byte `2`) carries an identity embedding → maps to **P4** (or **P5** if identity-bound), **never P1** (the single most dangerous mapping mistake); `Raw → P0`, `Anonymous → P2`, `Restricted → P2`; a governed-engine `demoted` cycle floors the egress class to ≥ P2 with raw suppressed. **P1 acceptance gates (15 tests / 0 failed — 5 unit + 9 integration + 1 doc):** round-trip (`SensingSnapshot → FieldEvent →` serde `→` equal), `is_fusable` (verified ed25519 receipt), `RuFieldFusion::ingest` accept + `infer()` runs, **privacy-safety** (`gate_privacy_safety_derived_never_maps_to_low_privacy` — `Derived → P4/P5`, never P1; a table test over every RuView class; fail-closed demotion), and determinism (same snapshot + same signer seed → byte-identical event). **Honest scope:** this is **P1 plumbing** — a tested conversion + a safe privacy mapping. It is **not** wired into the live server (that is P3) and makes **no accuracy claim** (RuField v0.1 is synthetic; RuView's single-link CSI carries its own caveats). CI: the `rust-tests` workflow checkout gains `submodules: recursive` so the path-deps resolve. Python deterministic proof unchanged (off the signal proof path).
+- **ADR-262 (Proposed): RuField MFS ↔ RuView integration — a live `SensingServerAdapter`, a privacy/provenance bridge, MAPPED not papered-over.** Researched integration design for wiring RuField into RuView. Recommends: a thin **`wifi-densepose-rufield` bridge crate** (anti-corruption layer, path-deps on the `vendor/rufield` submodule — the `vendor/rvcsi` pattern, since rufield crates are unpublished); a **live `SensingServerAdapter`** that taps the real `SensingUpdate` emit site joined with `TrustedOutput` trust state and emits one signed `FieldEvent`/cycle (the file-based `CsiReplayAdapter` stays for offline replay); **vertical fusion composition** (ruvsense fuses *within* WiFi → one `wifi_csi` event → rufield-fusion graph fuses *across* modalities above it); and **one canonical privacy/provenance model** (RuView `effective_class` is source-of-truth, mapped to RuField P0–P5 at egress; reuse the existing `cog-ha-matter` SHA-256+Ed25519 chain for the `ProvenanceReceipt`). **Key honest finding:** RuView has **two privacy enums + three witness mechanisms across two hash algorithms** that do not map 1:1 onto P0–P5, and a real trap — RuView's `Derived` privacy byte (`1`) sorts *below* `Anonymous` (`2`) yet carries identity embeddings, so the bridge must map by **information content** (`Derived → P4/P5`), never by byte value, or it would leak identity as low-privacy P1. 4 independently-shippable phases, each with a test gate (round-trip / `is_fusable` / privacy-monotonicity / ed25519-verify). Honest scope: this is **plumbing architecture, not accuracy** — RuField v0.1 is synthetic and RuView's only real-CSI path is unlabeled replay; the ADR claims only architecture, gated by round-trip/monotonicity/signature tests.
 - **RuField `CsiReplayAdapter` — first real (non-synthetic) WiFi-CSI adapter (ADR-260 §17).** RuField now ingests **real captured WiFi CSI** instead of only the synthetic simulator. New `rufield-adapters::csi_replay` parses RuView's `.csi.jsonl` recording format (`{timestamp, subcarriers[]}`), normalizes each frame to a `FieldTensor` (`WifiCsi`, real amplitudes + real `timestamp_ns`), establishes a per-subcarrier Welford **empty-room baseline** via `calibrate()`, derives a **physically-grounded CSI-variance motion/presence proxy** (normalized MAD vs baseline → P2 motion/presence, else P1), and emits `FieldEvent`s with a **real sha256 + ed25519 provenance receipt** (`synthetic=false`). **Measured on 199 real captured frames:** 184 presence-proxy / 69 motion-proxy → fed through `RuFieldFusion` → **182 fused inferences (115 breathing, 67 person_present) from real signal.** 12 tests (9 unit + 3 integration over real-CSI fixtures), deterministic (byte-identical stream per file). **Honest caveats (stated everywhere):** it's **replay from file, not live hardware**; recordings are **unlabeled**, so the motion/presence output is a **proxy, NOT validated accuracy** (no pose, no accuracy numbers); live streaming + labeled validation remain roadmap; mmWave/thermal stay synthetic. The win is "RuField ingests real WiFi CSI and produces fused events from it." [`ruvnet/rufield`](https://github.com/ruvnet/rufield) `crates/rufield-adapters`; `vendor/rufield` submodule bumped.
 - **RuField `rufield-viewer` web dashboard — completes ADR-260 §27.9 (all §27 criteria 1–10 now PASS).** A read-only Axum + vanilla-JS dashboard (no build step — `cargo run -p rufield-viewer`) that streams the deterministic SyntheticSim→fusion camera-free room-intelligence demo: live room-state inferences with confidence, a scrolling event log where every event carries its modality + a colour-coded **P0–P5 privacy badge**, the fusion graph (supporting=green / contradicting=red per inference), and a click-to-open **provenance-receipt modal** (sha256 + ed25519 signer + verified ✓ / fusable ✓) — behind a permanent, undismissable `SYNTHETIC — simulated sensors, no hardware` banner. Endpoints `/` · `/app.js` · `/health` · `/api/run` (full deterministic JSON) · `/events` (SSE). 12 new tests. Honest scope: a read-only SYNTHETIC demo viewer, **not** a device-management console — fleet/real-adapter management is a separate later milestone. Lives in [`ruvnet/rufield`](https://github.com/ruvnet/rufield) (`crates/rufield-viewer`, repo now 7 crates / 72 tests); `vendor/rufield` submodule bumped to include it.
 - **ADR-261: RuVector graph-ANN index — a real HNSW baseline + a SymphonyQG-style quantized variant, MEASURED (honest negative).** Closes the [ADR-156 §5 #1](docs/adr/ADR-156-ruvector-fusion-beyond-sota.md) gap: the SymphonyQG (SIGMOD 2025) **3.5–17× QPS-over-HNSW** claim was CLAIMED-only because **no HNSW baseline existed to compare against**. This adds one. New pure-Rust, `--no-default-features`-buildable modules in `wifi-densepose-ruvector`: `hnsw.rs` (a correct float HNSW — Malkov & Yashunin: multi-layer NSW graph, `ef_construction`/`ef_search`, Algorithm-4 neighbour selection, **seeded-deterministic** level assignment via SplitMix64, L2 + cosine, full degenerate-case guards), `hnsw_quantized.rs` (the SymphonyQG-style variant — the **same** graph traversed by a cheap **1-bit Hamming** score over the RaBitQ Pass-2 rotated sign code, then **exact-float rerank**), `ann_measure.rs` + `benches/ann_bench.rs` (one shared deterministic planted-cluster fixture; the `ann_bench_report` test is the source of truth). **MEASURED (dim=128, N=10k, K=10, `--release`):** float HNSW = **~25× QPS over linear scan at recall ≥0.99** (the baseline this gap needed; recall@10 correctness gate ≥0.95 holds, L2 + cosine). **Honest negative:** the 1-bit quantized traversal is **too coarse to beat float HNSW at equal recall at this scale** — its best recall is **0.738**, never reaching the ≥0.90 equal-recall point, so there is **no QPS win** over float HNSW; the 3.5–17× is **not reproduced** by our 1-bit construction here. The recall gate also **caught a real index-out-of-bounds bug** in the insert path (disclosed in ADR-261 §4). Caveat: this is **our** HNSW + **our** 1-bit quant, not SymphonyQG's exact system — it tests the *direction* of the claim, with the expected crossover at large N + a multi-bit traversal code. **We did not tune to manufacture a speedup.** +20 tests (ruvector lib 131→151, 0 failed). ADR-156 §5 #1 / §8 backlog: CLAIMED → **MEASURED-direction-tested**. Python deterministic proof unchanged (off the signal proof path).
@@ -23,6 +23,7 @@ Dual codebase: Python v1 (`v1/`) and Rust port (`v2/`).
 | `nvsim` | Deterministic NV-diamond magnetometer pipeline simulator (ADR-089) — standalone leaf, WASM-ready |
 | `vendor/rvcsi` (submodule) | **rvCSI** — edge RF sensing runtime (ADR-095/096): 9 crates (`rvcsi-core`/`-dsp`/`-events`/`-adapter-file`/`-adapter-nexmon`/`-ruvector`/`-runtime`/`-node`/`-cli`). Lives in its own repo ([github.com/ruvnet/rvcsi](https://github.com/ruvnet/rvcsi)), vendored here under `vendor/rvcsi`, published to crates.io as `rvcsi-* 0.3.x` and to npm as `@ruv/rvcsi`. Not a `v2/` workspace member — depend on the published crates (or the submodule's `crates/rvcsi-*` paths). Normalized `CsiFrame`/`CsiWindow`/`CsiEvent` schema, validate-before-FFI, reusable DSP, typed confidence-scored events, the napi-c Nexmon shim (real nexmon_csi `.pcap` from a Raspberry Pi 5 / 4 / 3B+ — BCM43455c0), the napi-rs SDK, the `rvcsi` CLI, a Claude Code plugin. |
 | `vendor/rufield` (submodule) | **RuField MFS** — the open spec for camera-free multimodal field sensing (ADR-260). A common `FieldEvent`/`FieldTensor`/`FusionGraph`/`PrivacyClass`/`ProvenanceReceipt` model *above* WiFi CSI/CIR/BFLD, UWB, BLE Channel Sounding, mmWave radar, ultrasound, subsonic, infrared, and quantum sensors. Lives in its own repo ([github.com/ruvnet/rufield](https://github.com/ruvnet/rufield)), vendored here under `vendor/rufield`. Not a `v2/` workspace member. v0.1 reference stack = 7 crates (`rufield-core`/`-provenance`/`-privacy`/`-adapters`/`-fusion`/`-bench`/`-viewer`), 72 tests/0 failed; `rufield-viewer` is an Axum + vanilla-JS read-only dashboard (`cargo run -p rufield-viewer`) completing ADR-260 §27.9. The WiFi-CSI modality is now **real-replay-backed** via `CsiReplayAdapter` (ingests real captured `.csi.jsonl` → fused presence/breathing inferences; replay-from-file, unlabeled CSI-variance proxy, not validated accuracy); mmWave/thermal + all synthetic-bench F1 numbers remain **SYNTHETIC** (no live hardware — live streaming + labeled accuracy are roadmap). |
+| `wifi-densepose-rufield` | ADR-262 P1 **anti-corruption bridge** — converts RuView WiFi-CSI sensing output (`SensingSnapshot` mirroring `SensingUpdate` + `TrustedOutput`, owned primitives, no dep on `wifi-densepose-sensing-server`) into **signed RuField `FieldEvent`s** (`Modality::WifiCsi`, real `timestamp_ns`, sha256 + ed25519 provenance, `synthetic=false`). The single coupling point between RuView and the standalone RuField MFS spec (§5.4); path-deps the `vendor/rufield` submodule crates (`rufield-core`/`-provenance`/`-privacy`/`-fusion`). **Critical §3.3 privacy mapping** (`map_privacy`): maps RuView class → RuField P0–P5 by **information content, never byte value**, fail-closed (`Derived → P4/P5`, never P1; `demoted` floors to ≥ P2). 15 tests / 0 failed (round-trip / `is_fusable` / fusion-ingest / privacy-safety / determinism). P1 plumbing — not wired into the live server (P3), no accuracy claim. |
 | `ruview-swarm` | Drone swarm control system (ADR-148) — hierarchical-mesh topology, Raft consensus, MARL, CSI sensing payload, MAVLink/PX4 compat, Ruflo AI-agent integration |

 ### RuvSense Modules (`signal/src/ruvsense/`)
@@ -14,6 +14,13 @@ COPY v2/crates/ ./crates/
 # Copy vendored RuVector crates
 COPY vendor/ruvector/ /build/vendor/ruvector/

+# Copy vendored RuField submodule — the `wifi-densepose-rufield` bridge crate
+# (ADR-262) path-deps `../../../vendor/rufield/crates/*`, which from the Docker
+# build layout (v2/ collapsed into /build) resolves to /vendor/rufield. Copy the
+# whole tree so the rufield workspace Cargo.toml (workspace-dep inheritance) and
+# the four bridged crates (rufield-core/-provenance/-privacy/-fusion) all resolve.
+COPY vendor/rufield/ /vendor/rufield/
+
 # Build release binaries:
 #   - sensing-server with `mqtt` feature so the HA-DISCO MQTT publisher
 #     (ADR-115) is wired in (auto-discovery topics flow to Home Assistant)
@@ -0,0 +1,207 @@
+# ADR-262: RuField MFS ↔ RuView integration — a live SensingServerAdapter, a privacy/provenance bridge, MAPPED not papered-over
+
+| Field | Value |
+|-------|-------|
+| **Status** | Proposed — **P1 + P3 implemented** (live `/api/field` + `/ws/field`; P3 signs with a **dedicated dev/sensing key**, deferring the §8 Q1 `cog-ha-matter` key-ownership decision to P2) |
+| **Date** | 2026-06-14 |
+| **Deciders** | ruv |
+| **Codebase target** | New thin bridge crate `wifi-densepose-rufield` (v2 workspace member); taps `wifi-densepose-sensing-server` emit path + `wifi-densepose-engine` `TrustedOutput`; depends on `vendor/rufield/crates/rufield-*` via path (the `vendor/rvcsi` pattern) |
+| **Relates to** | ADR-260 (RuField MFS spec + v0.1 reference stack), ADR-261 (RuVector graph-ANN), ADR-141 (BFLD privacy control-plane / modes / attestation), ADR-137 (fusion-engine quality scoring / contradiction), ADR-032 (multistatic mesh security hardening / witness), ADR-116 (cog tamper-evident audit log — `cog-ha-matter` SHA-256+Ed25519), ADR-095/096 (`rvcsi` vendored-submodule precedent) |
+| **Scope** | Decide **how** RuView's live WiFi-CSI sensing-server emits RuField `FieldEvent`s, **whether** RuView's ruvsense fusion composes with or is wrapped by rufield-fusion, and **how** to reconcile RuView's existing privacy/witness/provenance machinery with RuField's P0–P5 + ed25519 `ProvenanceReceipt`. The privacy/provenance reconciliation is the crux. |
+
+---
+
+## 0. PROOF discipline (this ADR's contract)
+
+This project has been publicly accused of "AI slop." This ADR answers with **evidence, not adjectives** — every "RuView already does X" carries a `file:line`, and every external/SOTA claim is graded.
+
+- **No accuracy is claimed.** RuField v0.1 is **SYNTHETIC** end-to-end by its own admission (ADR-260 "Honest statement", line 386–390: *"Every metric here is simulator-based. No ESP32 CSI, mmWave, or thermal capture was used."*). RuView's only real-CSI rufield path today would be **replay of recorded `.csi.jsonl`, unlabeled** — `rufield-adapters::CsiReplayAdapter`'s own module doc (`vendor/rufield/crates/rufield-adapters/src/csi_replay.rs:19-31`) states it is *"real signal, replay from file not live hardware, unlabeled ⇒ proxy not validated accuracy."* This ADR therefore proposes **plumbing**, and grades its own claims as "ARCHITECTURE" (a design decision, testable by a round-trip/compile gate) vs "ACCURACY" (which it explicitly does not assert).
+- The privacy/provenance section reports an **honest conflict**: RuView has **three** witness mechanisms across two hash algorithms, and **two** privacy enums, none of which map 1:1 onto RuField's P0–P5. We map them and recommend the cleanest reconciliation rather than asserting they already align.
+- Each phase below ships an **independently testable gate** (a round-trip test, a privacy-monotonicity test, a signature-verify test) so the integration is provable, not aspirational.
+
+---
+
+## 0.1 Implementation status
+
+**P1 (§4) is implemented** as the `wifi-densepose-rufield` bridge crate (`v2/crates/wifi-densepose-rufield/`, a new v2 workspace member; path-deps the `vendor/rufield` submodule per §5.4):
+
+- **Input** — `SensingSnapshot` (owned primitives mirroring `SensingUpdate` features/classification/signal_field joined with the `TrustedOutput` `trust_class`/`demoted`/`identity_bound`); the bridge does **not** depend on `wifi-densepose-sensing-server` (anti-corruption layer).
+- **Conversion** — `snapshot_to_field_event(&snap, &Signer)` emits a signed `FieldEvent` (`Modality::WifiCsi`, axis `[Frequency]`, real `timestamp_ns`); position derived from the signal-field peak when present (never fabricated); real sha256 `ProvenanceRef` + ed25519 signature, `synthetic = false`.
+- **Privacy (§3.3 crux)** — `map_privacy()` maps by information content, **fail-closed**: `Raw → P0`, `Derived → P4` (or `P5` if identity-bound — **never P1**), `Anonymous → P2`, `Restricted → P2`; a `demoted` cycle floors egress to ≥ P2.
+- **Gates that pass** (`tests/p1_gates.rs`, 15 tests / 0 failed = 5 unit + 9 integration + 1 doc): round-trip (snapshot → `FieldEvent` → serde → equal); `is_fusable` (verified ed25519 receipt); `RuFieldFusion::ingest` accept + `infer()` runs; **privacy-safety** (`gate_privacy_safety_derived_never_maps_to_low_privacy` — `Derived → P4/P5`, never P1; full §3.3 table; fail-closed demotion); determinism (same snapshot + same signer seed → byte-identical event).
+
+**P3 (§4) is implemented** as the live RuField surface in `wifi-densepose-sensing-server` (the bridge is now wired into the running server):
+
+- **Tap** — at the ESP32 governed-trust cycle (`main.rs` `observe_cycle` ~`:5886` / `SensingUpdate` build ~`:5938`), a new `emit_rufield_event` joins the cycle's `SensingUpdate` (features / classification / signal_field) with the engine's recorded `effective_class` / `demoted` trust state into a `wifi_densepose_rufield::SensingSnapshot`, then `snapshot_to_field_event(&snap, &signer)`. Existing endpoints (`/ws/sensing` etc.) are **unchanged** — purely additive.
+- **Surface** — `GET /api/field` (latest signed `FieldEvent`s + signer pubkey + a `dev_signing_key` flag) and `GET /ws/field` (broadcast stream, mirroring `/ws/sensing`), both mounted on the HTTP port and `/ws/field` also on the WS port. A small bounded ring buffer (`FIELD_RING_CAPACITY = 64`) holds recent **network-surfaced** events. New handler code lives in `src/rufield_surface.rs`, not in the 8k-line `main.rs`.
+- **Signer (defers the P2 key decision)** — a **dedicated standalone `Signer`** held in server state, seeded from `WDP_RUFIELD_SIGNING_SEED` (64-hex or ≥32-byte value), else a deterministic dev default with a logged `WARN`. Reusing the `cog-ha-matter` Ed25519 key (§8 Q1) is the **deferred P2** decision — P3 uses a standalone sensing key so it does not pre-empt that call.
+- **Egress privacy (fail-closed)** — `network_egress_allowed` is *stricter* than `DefaultPrivacyGuard` for an unattended live surface: only **P1/P2** leave the box; P0 (raw) and P3/P4/P5 (identity/biometric/aggregate above the default P2 ceiling) are held edge-local. A `Derived` cycle maps to P4/P5 and is therefore **never** surfaced. No-presence cycles emit nothing (no phantom events).
+- **Gates that pass** (`tests/rufield_surface_test.rs`, 4 integration via `tower::oneshot` + 4 module unit, 0 failed): a well-formed **signed** event (`Modality::WifiCsi`, P2 not P1, `is_fusable` ed25519-verified, real timestamp); **empty cycle → no phantom**; **privacy-safety** — an injected `Derived` trust never surfaces on `/api/field`; a mixed stream surfaces only egress-safe events.
+
+**Deferred:** the §3.3 *provenance carrier* recommendation (reuse the `cog-ha-matter` SHA-256+Ed25519 chain + embed the BLAKE3 engine witness) is **not** in P1/P3 — both take a dedicated `Signer` (the §8 open question 1 key-ownership decision is unresolved; P3 uses a standalone dev/sensing key precisely so it does not pre-empt P2). P2's `cog-ha-matter` key reuse + BLAKE3-embed, and P4 (multi-modality), remain future work. **No accuracy is claimed** (§0 / §6) — P1/P3 are tested plumbing on a live endpoint + a safe privacy mapping; the live surface is single-link CSI with its existing caveats (no validated room-coordinate accuracy — `field_localize`).
+
+---
+
+## 1. Context — two architectures, mapped
+
+### 1.1 RuField MFS (ADR-260, `vendor/rufield/`)
+
+A standalone pure-Rust Cargo workspace (serde, serde_json, toml, sha2, ed25519-dalek; **no tch/ndarray/candle**), vendored here as a git submodule (`git submodule status vendor/rufield` → `ba66e2e…`), **not** a v2 workspace member — exactly the `vendor/rvcsi` precedent (ADR-095/096). **Not published to crates.io**: every internal dep is a path dep with a nominal `version = "0.1.0"` (`vendor/rufield/Cargo.toml:31-37`); the `docs.rs/rufield-*` URLs are aspirational.
+
+The data model (graded ARCHITECTURE, evidence read directly):
+
+- **`FieldEvent`** (`vendor/rufield/crates/rufield-core/src/event.rs:96-112`): `spec_version, event_id, timestamp_ns: u64, sensor: SensorDescriptor, tensor: FieldTensor, observation: Observation, provenance: ProvenanceRef`.
+- **`Observation`** (`event.rs:25-51`): `zone_id, space_cell, range_m, velocity_mps, motion_vector, confidence: f32, features: BTreeMap<String,f32>` (the derived P1 scalars the fusion engine actually reads), `labels: Vec<String>` (ground-truth, **never read by fusion**), `privacy_class: PrivacyClass`.
+- **`PrivacyClass`** (`rufield-core/src/privacy.rs:8-25`): `P0..P5`, `#[serde(rename_all="UPPERCASE")]`, `Ord` by declaration order so **P0 < P1 < … < P5** — higher = more private; `level()->u8` returns 0..=5 (`privacy.rs:27-40`).
+- **`ProvenanceRef`** (on-wire, `event.rs:73-93`): `raw_hash, firmware_hash` (`sha256:…`), `model_id, calibration_id, synthetic: bool`, optional `signature_hex` / `signer_pubkey_hex` (detached ed25519).
+- The four traits (`rufield-core/src/traits.rs`): **`FieldAdapter`** (`:26-38`, `next_event() -> Result<Option<FieldEvent>>`), **`FieldEncoder`** (`:41-51`, **unimplemented in v0.1** — an open seam), **`FusionEngine`** (`:54-63`, `ingest(event)` + `infer(&query)`), **`PrivacyGuard`** (`:86-97`, `authorize(class, Destination, consent, identity_bound) -> PrivacyDecision{Allow|Deny|RequiresConsent}`).
+- **`CsiReplayAdapter`** (`rufield-adapters/src/csi_replay.rs`): constructed from **already-loaded text** (`from_jsonl(&str)` `:249-251`; `from_jsonl_with(text, device_id, &[u8;32])` `:254-323`) — **not** a path/`Read`/`Iterator`. Deserializes `CsiFrameRecord { timestamp: f64 (seconds), subcarriers: Vec<f64> }` (`:74-80`), buffers all frames into a `Vec<CsiFrame>`, then streams via a cursor (`next_event` `:550-557`). Maps each frame → `FieldEvent` with `Modality::WifiCsi`, axes `[Frequency]`, a Welford motion proxy, observation `privacy_class = P2 if presence else P1` (`:439-443`), real `sha256` raw-hash, and a **real ed25519 signature** (`signer.sign_event` `:507-510`). `max_privacy_class = P2`.
+- **`RuFieldFusion`** (`rufield-fusion/src/engine.rs:55-78`): `ingest()` **rejects non-fusable events on its first line** — `if !is_fusable(&event) { return Err(NotFusable) }` (`:212-215`) — then reads `event.observation.features` into a bounded temporal window; `infer()` applies TOML rules (`WeightedBayes` noisy-OR / `TemporalWindow`) → `Vec<FieldInference>`. TOML rule struct: `inputs, method, feature, threshold, privacy_max, window_ms, requires_consent` (`rules.rs:17-35`).
+- **`is_fusable`** (`rufield-provenance/src/lib.rs:179-184`): `synthetic == true` **OR** `verify_event().is_ok()` — the §11 invariant. Signing key is `ed25519_dalek 2.1`, deterministic from a 32-byte seed; raw hash is `sha256_hex` → `"sha256:<hex>"` (`:26-35`).
+- **`DefaultPrivacyGuard`** (`rufield-privacy/src/lib.rs:38-110`): default `network_max = P2`, `allow_p0_network = false`. P5-no-identity → `Deny`; P4-no-consent → `RequiresConsent`; `EdgeLocal` → `Allow`; `Network` denies P0 and `class > network_max`.
+- **`rufield-viewer`** (Axum 0.7): **self-contained, consumes `SyntheticSim` only** — all routes are read-only GET/SSE (`GET /api/run`, `GET /events`); **there is no ingest endpoint** (`vendor/rufield/crates/rufield-viewer/src/server.rs:63-72`). Feeding it a live stream requires adding a route.
+
+### 1.2 RuView (the integration target)
+
+- **Sensing-server is Axum** (`v2/crates/wifi-densepose-sensing-server/src/main.rs:7498-7629`), two listeners (WS `:8765`, HTTP). CSI does **not** arrive over WS/HTTP — it arrives over **UDP** from ESP32 nodes (`use tokio::net::UdpSocket`, `main.rs:53`; `recv_from` loop `main.rs:5286-5299`), parsed by magic `0xC511_0001` → **`Esp32Frame`** (`types.rs:84-100`: `node_id, n_subcarriers, ppdu_type, amplitudes: Vec<f64>, phases: Vec<f64>`, rssi/freq/sequence) → pushed into per-node `NodeState.frame_history: VecDeque<Vec<f64>>` (`main.rs:441-497`).
+- **`/ws/sensing` emits a `SensingUpdate`** (`main.rs:267-317`), broadcast over a `tokio::sync::broadcast` channel (`s.tx.send(json)` `main.rs:5938-5991`; the WS handler just subscribes and forwards, `main.rs:3021-3073`). `SensingUpdate` carries `nodes`, `features`, `classification {motion_level, presence, confidence}`, `signal_field`, `persons: Vec<PersonDetection>` (17 COCO keypoints + `position:[f64;3]` from `field_localize`, `main.rs:403-428`), pose, vitals. **`field_localize` (PR #1050) is a module, not a route** (`mod field_localize` `main.rs:17`; honesty caveat `field_localize.rs:16-27` — a single ESP32 link cannot resolve true room position, `position` is "strongest field peak").
+- **ruvsense fusion is strictly WITHIN-WiFi-modality.** `MultistaticFuser::fuse(&[MultiBandCsiFrame]) -> FusedSensingFrame` (`v2/crates/wifi-densepose-signal/src/ruvsense/multistatic.rs:285-288`) attention-weights **multiple WiFi CSI nodes/viewpoints** (every input is ESP32 CSI; `multistatic_bridge.rs:50-62` builds the frames from `NodeState` amplitude with `HardwareType::Esp32S3`). `coherence_gate.rs:18-37` is the `GateDecision{Accept|PredictOnly|Reject|Recalibrate}`; `pose_tracker.rs:255-263` is the 17-keypoint Kalman tracker with 128-dim AETHER re-ID; `field_model.rs:301-308` does SVD room-eigenstructure perturbation extraction. **No camera/mmWave/audio enters this path** — ruvsense is a multi-link WiFi-CSI fuser.
+- **The governed-trust cycle** runs in the separate **`wifi-densepose-engine`** crate. `StreamingEngine::process_cycle` (`v2/crates/wifi-densepose-engine/src/lib.rs:409`, `run_cycle` `:434-533`) produces **`TrustedOutput`** (`:82-112`): `semantic_id, quality: QualityScore, effective_class: PrivacyClass, demoted: bool, provenance: SemanticProvenance, witness: [u8;32]` (BLAKE3 over `evidence‖model‖calibration‖privacy_decision‖class`, `witness_of` `:598-613`), `recalibration_recommended`. **Crucially, none of this trust metadata is on the `SensingUpdate` wire today** — it is exposed only out-of-band on `GET /api/v1/status` (`main.rs:4173-4178`) and as a single live effect: `EngineBridge::suppress_raw_outputs()` strips per-node amplitude when `effective_class >= Restricted` (`engine_bridge.rs:240-243`, applied `main.rs:5908-5932`). The honest scope is stated in `engine_bridge.rs:14-27`: the governed engine runs *alongside* the bare fusion path; derived outputs are "published ungoverned."
+
+---
+
+## 2. Decision
+
+1. **Build a thin RuView-side bridge crate `wifi-densepose-rufield`** (a new v2 workspace member) that depends on `vendor/rufield/crates/rufield-core` (+ `rufield-provenance`, `rufield-privacy`, `rufield-fusion`) **via path** — mirroring the `vendor/rvcsi` pattern. RuView does **not** depend on published rufield crates (there are none) and does **not** vendor rufield into the v2 workspace; rufield stays a standalone submodule and the bridge is the only coupling point (an anti-corruption layer).
+2. **Emit `FieldEvent`s from the live server via an in-process `SensingServerAdapter`**, not by re-using the file-based `CsiReplayAdapter` on the hot path. The bridge taps the existing `SensingUpdate` build site and the `EngineBridge` trust state, joins them, and emits one signed `FieldEvent` per cycle on a new `tokio::broadcast` topic / optional `/ws/field` endpoint. `CsiReplayAdapter` is retained for the **offline/replay** path (recorded `.csi.jsonl` → events) because it already reads RuView's recording format (`recording.rs` writes `{session}.csi.jsonl`).
+3. **Compose the two fusion engines vertically, do not merge them.** ruvsense stays the **WiFi-modality node** (multi-link fusion → one fused WiFi belief); rufield-fusion sits **above** it as the **cross-modality** graph. ruvsense's `FusedSensingFrame`/`TrustedOutput` becomes one `FieldEvent` (modality `wifi_csi`); rufield fuses it against future mmWave/thermal/`rvcsi` events. They do not conflict because ruvsense has no cross-modality fusion to collide with (§1.2 evidence).
+4. **Reconcile privacy/provenance with ONE canonical model + a documented mapping** (§3, the crux): RuView's `effective_class` is the **source of truth**, mapped onto RuField `PrivacyClass` at the bridge; RuView's existing **`cog-ha-matter` SHA-256+Ed25519 witness chain** (already RuField's exact crypto) is adopted as the carrier for RuField `ProvenanceReceipt`, with the live BLAKE3 engine witness embedded as a hashed field. We do **not** maintain two parallel signed-receipt systems.
+
+---
+
+## 3. Privacy & provenance reconciliation (the crux)
+
+This is the most important section. RuView and RuField genuinely **overlap and partially conflict**. We map both honestly.
+
+### 3.1 What RuView actually has (implemented, with evidence)
+
+- **TWO privacy enums, not one ladder.** `PrivacyClass` — **4 variants** `Raw=0, Derived=1, Anonymous=2, Restricted=3` (`v2/crates/wifi-densepose-bfld/src/lib.rs:103-116`, `#[repr(u8)]`, higher byte = more private, **non-monotonic in information** — `Derived=1` carries *more* identity than `Anonymous=2`). And `PrivacyMode` — **5 variants** `RawResearch, PrivateHome, EnterpriseAnonymous, CareWithConsent, StrictNoIdentity` (`bfld/src/privacy_mode.rs:18-31`), each mapping to a `PrivacyClass` via `target_class()` (`:63-70`; two modes collapse to `Anonymous`).
+- **THREE witness mechanisms across TWO hash algorithms:**
+  - BFLD `PrivacyAttestationProof` — **BLAKE3, unsigned**, attests mode/class continuity only; **built but NOT on the live path** (ADR-141 status line ~597; `bfld/src/privacy_mode.rs:121-148`).
+  - Engine-cycle `TrustedOutput.witness: [u8;32]` — **BLAKE3, unsigned**, over the full trust decision; **LIVE every cycle** (`wifi-densepose-engine/src/lib.rs:598-613`).
+  - `cog-ha-matter::WitnessChain` — **SHA-256 hash chain + Ed25519 signatures** (`v2/crates/cog-ha-matter/src/witness.rs:138-151`; `witness_signing.rs:39-76`), JSONL-persisted, `verify()` + `verify_signature()`. Implemented for ADR-116 (cog/Matter audit log); **standalone, not wired to BFLD/engine**. Its `WitnessHash` newtype doc explicitly anticipates a hash-algo migration (`witness.rs:37-41`).
+- **No numeric trust score.** "Trust" in code = `base_coherence: f32∈[0,1]` + `penalized_coherence()` (`signal/.../fusion_quality.rs:99,122-126`) + a **boolean** `forces_privacy_demotion()` (`:116`). Demotion is monotonic and irreversible (`demote_one` clamps at Restricted, `engine/src/lib.rs:617-619`).
+- **Structured provenance exists, but no signed "receipt" on the sensing path.** `SemanticProvenance { evidence, model_version, calibration_version, privacy_decision }` (`v2/crates/wifi-densepose-worldgraph/src/model.rs:137-147`) is attached to every belief and is the *input* to the BLAKE3 witness — but it is unsigned and not called a receipt.
+
+### 3.2 Side-by-side, graded
+
+| Dimension | RuView (file:line) | RuField | Alignment |
+|---|---|---|---|
+| Privacy ladder | `PrivacyClass` 4 (`bfld/lib.rs:103`) **or** `PrivacyMode` 5 (`bfld/privacy_mode.rs:18`) | `PrivacyClass` 6 (P0–P5, `rufield-core/privacy.rs:8`) | **PARTIAL→CONFLICT** — no clean 1:1; counts differ (4/5 vs 6); RuView class ordering non-monotonic |
+| Demotion direction | higher = more private, irreversible (`engine/lib.rs:617`) | higher P# = more private, `Ord` by decl order (`privacy.rs:8-25`) | **STRONG** (same direction) |
+| Provenance receipt | `SemanticProvenance` unsigned (`worldgraph/model.rs:137`) | `ProvenanceRef` + ed25519 (`event.rs:73`) | **PARTIAL** — structured but unsigned |
+| Witness crypto (live path) | BLAKE3 `[u8;32]`, unsigned (`engine/lib.rs:598`) | sha256 + ed25519 (`rufield-provenance/lib.rs:26,135`) | **CONFLICT** (algo + signing) |
+| Witness crypto (cog-ha-matter) | **SHA-256 + Ed25519** (`cog-ha-matter/witness.rs`, `witness_signing.rs`) | **sha256 + ed25519** | **STRONG** — RuField's exact crypto, already in-repo, but unwired and in another bounded context |
+| Trust / confidence | `penalized_coherence: f32` + boolean demote (`fusion_quality.rs:122`) | `confidence: f32` per observation | **WEAK** — RuView has no graded trust object; confidence maps, demotion is binary |
+
+### 3.3 The recommendation (the key call)
+
+**Adopt ONE canonical model with a documented, lossy-but-monotonic mapping — do not run two parallel schemes.** Concretely:
+
+1. **Privacy: RuView `effective_class` is the source of truth; the bridge maps it onto RuField `PrivacyClass`** at the egress boundary. The honest mapping (graded ARCHITECTURE — it is a *policy* decision, and it is **monotonicity-testable**, not an accuracy claim):
+
+   | RuView `PrivacyClass` | → RuField | Rationale |
+   |---|---|---|
+   | `Raw` (raw CSI amplitude) | `P0` | raw waveform |
+   | `Derived` (identity embedding, LAN-only) | `P4` *(or P5 if identity-bound)* | derived **identity** features ⇒ biometric/identity tier, **not** P1 — RuView's non-monotonic `Derived=1` is the trap; map by *information content*, not byte value |
+   | `Anonymous` (occupancy/aggregate) | `P2`/`P3` | occupancy → P2, room-count aggregate → P3 |
+   | `Restricted` (zeroized) | `P2`-capped, raw suppressed | matches `suppress_raw_outputs` (`engine_bridge.rs:240`) |
+
+   The bridge **must** map `Derived → P4/P5`, never P1, because RuView's `Derived` carries `identity_embedding` (§3.1) — this is the single most dangerous mapping mistake and gets a dedicated test (P2 in §4). `PrivacyMode` (5) is the better *operator-facing* join to RuField's 6 levels but the **class** is what gates egress, so the class mapping is canonical.
+
+2. **Provenance: adopt `cog-ha-matter`'s SHA-256+Ed25519 chain as the carrier for RuField `ProvenanceReceipt`** — it is already RuField's exact crypto (graded STRONG above), already implemented, already tamper-evident. The bridge constructs the RuField `ProvenanceRef` by: `raw_hash = sha256(csi bytes)`, `model_id`/`calibration_id` from `SemanticProvenance`, and **embeds the live BLAKE3 engine witness `[u8;32]` as a hashed provenance field** (it is already computed every cycle — do not throw it away), then **signs with ed25519** so `is_fusable` passes for live (non-synthetic) events. We do **not** add a second BLAKE3-vs-ed25519 argument: BLAKE3 stays RuView's internal fast cycle-fingerprint; ed25519 is the *external* attestation RuField requires. One signer, one chain.
+
+3. **Trust: map `penalized_coherence` → `Observation.confidence`; keep demotion binary.** RuView has no graded trust object to reconcile; the coherence scalar is the honest analog and the demotion boolean already drives `effective_class`.
+
+This is a **bridge-with-canonical-source**, not "keep both forever." RuView owns the privacy decision (it has the live governed cycle); RuField owns the *external wire shape* (P0–P5 + signed receipt). The bridge is the one-directional translation, and it is the only place the two schemes meet.
+
+---
+
+## 4. Phased plan (each phase independently shippable + testable)
+
+**P1 — `SensingServerAdapter` emitting `FieldEvent`s (ARCHITECTURE).**
+New crate `wifi-densepose-rufield` with a `SensingServerAdapter` that consumes a `(SensingUpdate, TrustedOutput)` pair (tapped at `main.rs:5886`/`:5938`) and emits a signed `FieldEvent` (`Modality::WifiCsi`, axes `[Frequency]`, observation features from `SensingUpdate.features`, `confidence` from `penalized_coherence`). Offline path: keep `CsiReplayAdapter` for recorded `.csi.jsonl`. **Gate:** a round-trip test — emit a `FieldEvent` from a fixture `SensingUpdate`, assert it serializes, `is_fusable` passes (ed25519-signed), and `RuFieldFusion::ingest` accepts it. No server changes required beyond exposing the tap; the adapter is a library.
+
+**P2 — privacy/provenance bridge (the crux, ARCHITECTURE).**
+Implement the §3.3 mapping: `effective_class → PrivacyClass`, `cog-ha-matter` ed25519 signer for the receipt, BLAKE3 witness embedded. **Gates (three, all monotonicity/safety, not accuracy):** (a) `Derived → P4|P5` never P1 (the dangerous-mapping test); (b) privacy monotonicity — `demoted == true` ⇒ emitted `PrivacyClass >= P2` and raw suppressed; (c) signature round-trip — sign with the cog-ha-matter key, `rufield_provenance::verify_event` passes. This phase is shippable without P3 (events emitted on an internal topic, not yet on the public wire).
+
+**P3 — surface in `/ws` + viewer (ARCHITECTURE).**
+Add an opt-in `/ws/field` endpoint (or a `field_events` array on `SensingUpdate` behind a flag) carrying the signed `FieldEvent` + a privacy badge. Add an ingest route to `rufield-viewer` (it has none today — `server.rs:63-72`) so it can replay RuView's live feed instead of only `SyntheticSim`. **Gate:** a WS integration test asserting a connected client receives a privacy-badged, signature-verifiable `FieldEvent`; a viewer test asserting the new ingest route renders a live event. The `cognitum` appliance can speak RuField by consuming this endpoint (it already runs `ruview-vitals-worker`); deferred to its own ADR.
+
+**P4 — fusion composition + multi-modality (ARCHITECTURE, optional).**
+Wire a second modality (cheapest: an `rvcsi`-sourced event, or recorded mmWave) into `RuFieldFusion` alongside the WiFi event, proving cross-modality fusion above ruvsense. **Gate:** a fusion test with two modalities producing ≥1 cross-modal inference, with provenance coverage 100%.
+
+---
+
+## 5. Decision matrix
+
+### 5.1 Data-path emission (P1)
+
+| Option | Latency | Reuse | Live-fit | Risk | Verdict |
+|---|---|---|---|---|---|
+| Re-use `CsiReplayAdapter` on hot path | poor (file buffer, `&str` ctor) | high | **bad** — it's a file-cursor, not a live source | low | **Reject for live** (keep for replay) |
+| In-process `SensingServerAdapter` (tap `SensingUpdate`+`TrustedOutput`) | good | medium | **good** — taps the real emit + real trust state | low | **CHOSEN** |
+| Server publishes `FieldEvent` on its own topic (no adapter trait) | good | low | good | medium (bypasses `FieldAdapter` contract) | Reject — loses the trait seam |
+
+### 5.2 Fusion relationship (P3/P4)
+
+| Option | Verdict |
+|---|---|
+| Merge ruvsense into rufield-fusion | **Reject** — different scopes; ruvsense is within-WiFi multi-link, rufield is cross-modality |
+| rufield-fusion wraps ruvsense (vertical compose) | **CHOSEN** — ruvsense → one WiFi `FieldEvent` → rufield cross-modality graph |
+| Run both as peers, reconcile after | Reject — duplicates fusion semantics, two contradiction models |
+
+### 5.3 Privacy/provenance reconciliation (P2)
+
+| Option | Verdict |
+|---|---|
+| (a) Map RuView classes onto RuField P0–P5, RuView canonical | **CHOSEN (privacy)** — `effective_class` is the live source of truth |
+| (b) Adopt RuField ed25519 receipts as RuView's provenance | **CHOSEN (provenance)** — via the already-present `cog-ha-matter` SHA-256+Ed25519 chain |
+| (c) Keep both schemes with a permanent bridge | **Reject** — two signed-receipt systems is the duplication we must not ship |
+
+### 5.4 Dependency direction
+
+| Option | Verdict |
+|---|---|
+| Depend on published rufield crates | **Reject** — not published (`vendor/rufield/Cargo.toml:31-37`) |
+| Make rufield a v2 workspace member | **Reject** — breaks the standalone-spec/`rvcsi` precedent |
+| Thin `wifi-densepose-rufield` bridge → path deps on submodule | **CHOSEN** — anti-corruption layer, single coupling point |
+
+---
+
+## 6. Security & honesty notes
+
+- **No accuracy claim.** Live RuField events from RuView are derived from the same single-link CSI whose own caveats are on record (`field_localize.rs:16-27`); the offline path is unlabeled replay (`csi_replay.rs:19-31`). This ADR ships **plumbing with monotonicity/signature gates**, not validated F1.
+- **The dangerous mapping is `Derived → P1`.** RuView's `Derived` byte value (1) is numerically below `Anonymous` (2) but carries identity (`bfld/lib.rs`); a naive byte-mapping would leak identity-bearing features as low-privacy P1. P2's gate (a) exists specifically to prevent this.
+- **One signer, not two.** Adding a second ed25519 keypair alongside `cog-ha-matter`'s would create two roots of trust. The bridge reuses the cog-ha-matter signing key (`witness_signing.rs`).
+- **`is_fusable` is a real gate, not decoration** (`rufield-provenance/lib.rs:179-184`): live events that fail to sign are rejected by `RuFieldFusion::ingest` — we must not paper over a signing failure with `synthetic = true` on a real event (that would be the §11 invariant violation the spec forbids).
+- BLAKE3 stays internal; ed25519 is the external attestation. We do not relitigate RuView's BLAKE3 cycle-witness — it is embedded, not replaced.
+
+## 7. Consequences
+
+**Positive:** RuView becomes one honest adapter in the larger RuField ecosystem (ADR-260 goal §9) without forking its fusion or privacy engine; the three witness mechanisms get a single external attestation path; cross-modality fusion becomes possible above the existing WiFi fusion; the `cognitum` appliance gains a standard wire format. The bridge is the only coupling point, so rufield can evolve as a standalone spec.
+
+**Negative:** a fourth crate to maintain; the privacy mapping is lossy (4/5 → 6) and must be kept honest by tests; reusing the `cog-ha-matter` key crosses a bounded-context boundary (cog/Matter ↔ sensing) that ADR-116 kept separate — that coupling needs review. The live trust metadata (`witness`, `effective_class`) is **currently decoupled** from `SensingUpdate` (§1.2), so P1 must do real join work, not a field read.
+
+## 8. Open questions
+
+1. **Signer ownership:** should the bridge reuse the `cog-ha-matter` Ed25519 key, or mint a dedicated RuView-sensing key with its own rotation? (Reuse couples bounded contexts; a new key adds a second root of trust.)
+2. **`PrivacyMode` vs `PrivacyClass` as the canonical map target:** class gates egress (chosen), but the 5-mode ladder is the cleaner join to 6 levels — do we expose mode in the receipt too?
+3. **Where does the BLAKE3 engine witness live in the RuField receipt** — a `firmware_hash`-style field, an extension field, or a `CalibrationReceipt.data_hash`? (RuField's `ProvenanceRef` has no spare slot; needs a spec extension or reuse of `model_id`.)
+4. **Should `field_localize` positions ride in `Observation.space_cell`/`motion_vector`** given the explicit single-link caveat, or stay RuView-only until multi-node calibration lands?
+5. **`rvcsi` relationship:** `rvcsi` has its own `CsiFrame`/`CsiWindow` and could implement `FieldAdapter` directly — should the second modality in P4 be `rvcsi`, making RuField the convergence point for *both* vendored sensing runtimes?
+6. **Transport:** RuField ADR-260 §29 leaves default transport open (MQTT/NATS/WS/MCP). RuView is WS + UDP + broadcast; does `/ws/field` suffice, or does the appliance need MQTT to match the cog stack?
+
+## 9. Recommendation
+
+Proceed with P1+P2 behind a feature flag. They are independently shippable, carry real gates (round-trip, monotonicity, signature-verify), and require no change to RuView's fusion or privacy engine — only a tap and a translation. Defer P3/P4 and the appliance/transport questions to follow-up ADRs once the bridge round-trips on recorded `.csi.jsonl` and on one live cycle.
@@ -522,6 +522,25 @@ Base URL: `http://localhost:3000` (Docker) or `http://localhost:8080` (binary de
 | `GET` | `/api/v1/mesh` | ADR-110 fleet-wide mesh sync map ([iter 29](adr/ADR-110-esp32-c6-firmware-extension.md)) | `{"nodes":{"9":{...},"12":{...}},"total":2}` |
 | `GET` | `/api/v1/nodes/:id/sync` | Single-node mesh sync snapshot (or 404) | `{"offset_us":1163565,"is_leader":false,...}` |
 | `GET` | `/api/v1/mesh/metrics` | ADR-110 mesh state in Prometheus exposition format ([iter 36](adr/ADR-110-esp32-c6-firmware-extension.md)) | `wifi_densepose_mesh_offset_us{node="9"} 1163565\n…` |
+| `GET` | `/api/field` | ADR-262 P3 — latest **signed RuField `FieldEvent`s** from the live sensing cycle, plus the signer pubkey + a `dev_signing_key` flag. Only egress-safe (P1/P2) events are surfaced; identity/biometric (P4/P5) and raw (P0) are held edge-local | `{"spec":"rufield","signer_pubkey_hex":"…","dev_signing_key":true,"events":[…]}` |
+
+### RuField surface (ADR-262 P3)
+
+RuView's live WiFi-CSI sensing now also speaks the standalone **RuField MFS** wire format. Each governed sensing cycle is converted (via the `wifi-densepose-rufield` anti-corruption bridge) into a **signed** `FieldEvent` (`Modality::WifiCsi`, ed25519 `ProvenanceRef`) and surfaced on two additive endpoints:
+
+- `GET /api/field` — the most recent signed events (JSON).
+- `GET /ws/field` — a WebSocket that streams each cycle's signed event (mirrors `/ws/sensing`).
+
+```bash
+curl -s http://localhost:3000/api/field | python -m json.tool          # latest signed FieldEvents
+python -c "import asyncio,websockets; asyncio.run((lambda: websockets.connect('ws://localhost:8765/ws/field'))())"  # stream
+```
+
+Privacy is fail-closed: only egress-safe **P1/P2** events leave the box — raw (P0) and identity/biometric/aggregate (P3–P5) cycles are held **edge-local** and never appear on these endpoints; a no-presence cycle emits **no event**.
+
+**Signing key:** the surface signs with a **dedicated dev/sensing key**, seeded from `WDP_RUFIELD_SIGNING_SEED` (a 64-char hex string or a ≥32-byte value); when unset it falls back to a deterministic dev default and logs a `WARN` (the `dev_signing_key` flag in `/api/field` reflects this). This is a standalone key pending the ADR-262 §8 Q1 key-ownership decision — set `WDP_RUFIELD_SIGNING_SEED` for any real deployment.
+
+> **Honesty (ADR-262 §0/§6):** this is real plumbing on a live endpoint, **not an accuracy claim.** It is the single-link CSI sensing with its existing caveats (no validated room-coordinate accuracy — positions are the "strongest field peak", not calibrated triangulation).

 ### Example: Get fleet mesh state (ADR-110)

@@ -7085,6 +7085,42 @@ dependencies = [
 "smallvec",
 ]

+[[package]]
+name = "rufield-core"
+version = "0.1.0"
+dependencies = [
+ "serde",
+ "serde_json",
+]
+
+[[package]]
+name = "rufield-fusion"
+version = "0.1.0"
+dependencies = [
+ "rufield-core",
+ "rufield-provenance",
+ "serde",
+ "toml 0.8.23",
+]
+
+[[package]]
+name = "rufield-privacy"
+version = "0.1.0"
+dependencies = [
+ "rufield-core",
+]
+
+[[package]]
+name = "rufield-provenance"
+version = "0.1.0"
+dependencies = [
+ "ed25519-dalek",
+ "rufield-core",
+ "serde",
+ "serde_json",
+ "sha2",
+]
+
 [[package]]
 name = "rumqttc"
 version = "0.24.0"
@@ -11045,6 +11081,18 @@ dependencies = [
 "tower-http",
 ]

+[[package]]
+name = "wifi-densepose-rufield"
+version = "0.3.0"
+dependencies = [
+ "rufield-core",
+ "rufield-fusion",
+ "rufield-privacy",
+ "rufield-provenance",
+ "serde",
+ "serde_json",
+]
+
 [[package]]
 name = "wifi-densepose-ruvector"
 version = "0.3.2"
@@ -11094,6 +11142,7 @@ dependencies = [
 "wifi-densepose-engine",
 "wifi-densepose-geo",
 "wifi-densepose-hardware",
+ "wifi-densepose-rufield",
 "wifi-densepose-signal",
 "wifi-densepose-wifiscan",
 "wifi-densepose-worldgraph",
@@ -72,6 +72,11 @@ members = [
    "crates/homecore-assist",      # ADR-133 — HOMECORE voice assistant + ruflo bridge
    "crates/homecore-server",      # iter-9 — HOMECORE integration binary (all 8 crates wired together)
    "crates/ruview-swarm",                         # ADR-148 — drone swarm control system
+    # ADR-262 P1 — anti-corruption bridge converting RuView WiFi-CSI sensing
+    # output into signed RuField FieldEvents. Path-deps the `vendor/rufield`
+    # submodule crates (rufield-core/-provenance/-privacy/-fusion); single
+    # coupling point between RuView and the standalone RuField MFS spec.
+    "crates/wifi-densepose-rufield",
 ]
 # ADR-040: WASM edge crate targets wasm32-unknown-unknown (no_std),
 # excluded from workspace to avoid breaking `cargo test --workspace`.
@@ -0,0 +1,26 @@
+[package]
+name = "wifi-densepose-rufield"
+version = "0.3.0"
+edition = "2021"
+description = "ADR-262 anti-corruption bridge: converts RuView WiFi-CSI sensing output into signed RuField FieldEvents (P0–P5 privacy mapping + ed25519 provenance)"
+license.workspace = true
+authors.workspace = true
+repository.workspace = true
+
+# ADR-262 §5.4: this crate is the single coupling point ("anti-corruption
+# layer") between RuView and the standalone RuField MFS spec. It depends on the
+# `vendor/rufield` submodule crates **via path** (the `vendor/rvcsi` pattern) —
+# RuView does NOT depend on published rufield crates (there are none) and does
+# NOT make rufield a v2 workspace member. The four crates below are pure-Rust
+# (serde / serde_json / toml / sha2 / ed25519-dalek only — no tch / openblas /
+# ndarray / candle), so they build under `--no-default-features`.
+[dependencies]
+rufield-core = { path = "../../../vendor/rufield/crates/rufield-core" }
+rufield-provenance = { path = "../../../vendor/rufield/crates/rufield-provenance" }
+rufield-privacy = { path = "../../../vendor/rufield/crates/rufield-privacy" }
+rufield-fusion = { path = "../../../vendor/rufield/crates/rufield-fusion" }
+serde = { workspace = true }
+serde_json = { workspace = true }
+
+[dev-dependencies]
+serde_json = { workspace = true }
@@ -0,0 +1,206 @@
+//! The conversion: `SensingSnapshot` → signed `FieldEvent` (ADR-262 P1).
+//!
+//! This is the in-process `SensingServerAdapter` core (ADR-262 §4 P1 / §5.1):
+//! it consumes a `(SensingUpdate, TrustedOutput)` join — modelled here as a
+//! [`SensingSnapshot`] of owned primitives — and emits one signed
+//! [`FieldEvent`] (`Modality::WifiCsi`, axis `[Frequency]`) per cycle.
+
+use crate::privacy::egress_class;
+use crate::snapshot::{SensingSnapshot, SignalField};
+use rufield_core::{
+    FieldAxis, FieldEvent, FieldTensor, Modality, Observation, PrivacyClass, ProvenanceRef,
+    SensorDescriptor,
+};
+use rufield_provenance::{sha256_hex, Signer};
+use std::collections::BTreeMap;
+
+/// Model id stamped on emitted events (ADR-262 — derived features come from
+/// RuView's `/ws/sensing` pipeline, not a trained encoder).
+const MODEL_ID: &str = "ruview_sensing_server_v1";
+
+/// Firmware hash placeholder until the real ESP32 firmware image hash is wired
+/// through (ADR-262 §8 open question 3 — the BLAKE3 engine witness slot). A
+/// stable `sha256:` over the model id keeps it a real digest, not a fake.
+fn firmware_hash() -> String {
+    sha256_hex(MODEL_ID.as_bytes())
+}
+
+/// Squash a non-negative power-like scalar into `[0, 1]` deterministically.
+/// `x / (x + 1)` — monotone, no panics, no calibration claim.
+fn squash(x: f64) -> f32 {
+    if !x.is_finite() || x <= 0.0 {
+        return 0.0;
+    }
+    (x / (x + 1.0)) as f32
+}
+
+/// Build the `Observation.features` map the RuField fusion engine reads
+/// (`rufield-fusion/engine.rs:217-228`: `motion_energy`, `breathing_band`,
+/// `transient`, `presence`, `range_m`, plus `posture_height`).
+fn build_features(snap: &SensingSnapshot, range_m: Option<f32>) -> BTreeMap<String, f32> {
+    let f = &snap.features;
+    let mut m = BTreeMap::new();
+    m.insert("motion_energy".to_string(), squash(f.motion_band_power));
+    m.insert("breathing_band".to_string(), squash(f.breathing_band_power));
+    m.insert("transient".to_string(), squash(f.change_points as f64));
+    m.insert(
+        "presence".to_string(),
+        if snap.classification.presence { 1.0 } else { 0.0 },
+    );
+    if let Some(r) = range_m {
+        m.insert("range_m".to_string(), r);
+    }
+    m
+}
+
+/// Derive a real range (metres) and motion vector from the strongest signal
+/// field peak, if a field is present. Returns `(range_m, motion_vector,
+/// space_cell)` — all `None` when there is no field (we do NOT fabricate
+/// coordinates, per ADR-262 §4 P1).
+fn derive_position(
+    field: Option<&SignalField>,
+) -> (Option<f32>, Option<[f32; 3]>, Option<[i32; 3]>) {
+    let Some(field) = field else {
+        return (None, None, None);
+    };
+    let Some(cell) = field.peak_cell() else {
+        return (None, None, None);
+    };
+    // Range from origin in grid-cell units (real readout, not calibrated
+    // metres — the honesty caveat from `field_localize.rs:16-27`).
+    let [x, y, z] = cell;
+    let range = ((x * x + y * y + z * z) as f32).sqrt();
+    let mag = if range > 0.0 { range } else { 1.0 };
+    let motion_vector = [x as f32 / mag, y as f32 / mag, z as f32 / mag];
+    (Some(range), Some(motion_vector), Some(cell))
+}
+
+/// Stable, deterministic event id from `(node_id, timestamp_ns)`. No RNG, so
+/// the same snapshot always yields the same id (required for the determinism
+/// gate).
+fn event_id(snap: &SensingSnapshot) -> String {
+    format!("ruview-{}-{}", snap.node_id, snap.timestamp_ns)
+}
+
+/// Convert a [`SensingSnapshot`] to a **signed** [`FieldEvent`] (ADR-262 P1).
+///
+/// 1. Builds a `FieldTensor` (`Modality::WifiCsi`, axis `[Frequency]`) whose
+///    values are the RuView feature scalars, with the real `timestamp_ns`.
+/// 2. Builds an `Observation` — `motion_vector`/`range_m`/`space_cell` derived
+///    from the signal-field peak when present (else `None`; coordinates are
+///    never fabricated), `confidence` from the classification, labels from
+///    motion-level/presence.
+/// 3. Stamps the §3.3 egress privacy class (information-content mapping with
+///    the demotion floor) on both tensor and observation.
+/// 4. Builds a real `ProvenanceRef` (sha256 raw hash over the tensor/feature
+///    bytes, `synthetic = false`) and **signs** it with the supplied ed25519
+///    [`Signer`] so `rufield_provenance::is_fusable` passes.
+///
+/// Determinism: with no RNG anywhere and a deterministic ed25519 signer, the
+/// same `snap` + same signer seed yields a byte-identical event.
+#[must_use]
+pub fn snapshot_to_field_event(snap: &SensingSnapshot, signer: &Signer) -> FieldEvent {
+    let class = egress_class(snap.trust_class, snap.identity_bound, snap.demoted);
+
+    let (range_m, motion_vector, space_cell) = derive_position(snap.signal_field.as_ref());
+
+    // ── 1. Tensor ──────────────────────────────────────────────────────────
+    // The frequency-domain feature scalars, in a stable order.
+    let f = &snap.features;
+    let values: Vec<f32> = vec![
+        f.mean_rssi as f32,
+        f.variance as f32,
+        f.motion_band_power as f32,
+        f.breathing_band_power as f32,
+        f.dominant_freq_hz as f32,
+        f.spectral_power as f32,
+    ];
+    let confidence = (snap.classification.confidence as f32).clamp(0.0, 1.0);
+    let noise_floor = f.variance.max(0.0) as f32;
+    let calibration_id = format!("ruview_node_{}", snap.node_id);
+
+    // `FieldTensor::new` only errors on a shape/axis mismatch; our shape
+    // exactly matches `values.len()` and one axis, so this is infallible here.
+    let tensor = FieldTensor::new(
+        snap.timestamp_ns,
+        Modality::WifiCsi,
+        vec![FieldAxis::Frequency],
+        vec![values.len()],
+        values,
+        confidence,
+        noise_floor,
+        Some(calibration_id.clone()),
+        class,
+    )
+    .expect("feature tensor shape is well-formed by construction");
+
+    // ── 2. Observation ─────────────────────────────────────────────────────
+    let observation = Observation {
+        zone_id: Some(snap.node_id.clone()),
+        space_cell,
+        range_m,
+        velocity_mps: None,
+        motion_vector,
+        confidence,
+        features: build_features(snap, range_m),
+        labels: build_labels(snap),
+        privacy_class: class,
+    };
+
+    // ── 3. Provenance (real sha256 over the tensor bytes) ───────────────────
+    let raw_hash = sha256_hex(
+        &serde_json::to_vec(&tensor).expect("tensor serializes to JSON for hashing"),
+    );
+    let provenance = ProvenanceRef {
+        raw_hash,
+        firmware_hash: firmware_hash(),
+        model_id: MODEL_ID.to_string(),
+        calibration_id,
+        synthetic: false, // a real (non-synthetic) live/replay event
+        signature_hex: None,
+        signer_pubkey_hex: None,
+    };
+
+    let sensor = SensorDescriptor {
+        modality: "wifi_csi".to_string(),
+        vendor: "esp32".to_string(),
+        device_id: snap.node_id.clone(),
+        placement: "unknown".to_string(),
+        clock_domain: "local".to_string(),
+    };
+
+    let mut event = FieldEvent::new(
+        event_id(snap),
+        snap.timestamp_ns,
+        sensor,
+        tensor,
+        observation,
+        provenance,
+    );
+
+    // ── 4. Sign (ed25519) so `is_fusable` passes for this real event ────────
+    signer
+        .sign_event(&mut event)
+        .expect("ed25519 signing of a serializable event is infallible");
+
+    event
+}
+
+/// Labels from the classification. These are descriptive (`person_present`,
+/// `motion_<level>`); the RuField fusion engine never reads labels
+/// (`event.rs:45-48`), so this carries no identity.
+fn build_labels(snap: &SensingSnapshot) -> Vec<String> {
+    let mut labels = Vec::new();
+    if snap.classification.presence {
+        labels.push("person_present".to_string());
+    }
+    labels.push(format!("motion_{}", snap.classification.motion_level));
+    labels
+}
+
+/// Convenience: the privacy class that *would* be stamped for a snapshot,
+/// without building the whole event. Useful for egress badges (P3) and tests.
+#[must_use]
+pub fn snapshot_egress_class(snap: &SensingSnapshot) -> PrivacyClass {
+    egress_class(snap.trust_class, snap.identity_bound, snap.demoted)
+}
@@ -0,0 +1,123 @@
+//! # wifi-densepose-rufield
+//!
+//! ADR-262 **anti-corruption bridge**: converts RuView's live WiFi-CSI sensing
+//! output into signed RuField [`FieldEvent`](rufield_core::FieldEvent)s.
+//!
+//! This crate is the **single coupling point** (ADR-262 §5.4) between RuView and
+//! the standalone RuField MFS spec (`vendor/rufield`, ADR-260). It depends on
+//! the four pure-Rust rufield crates **via path** — `rufield-core`,
+//! `-provenance`, `-privacy`, `-fusion` — and on **no** RuView internal crate.
+//! Inputs are owned primitives ([`SensingSnapshot`]) that mirror what RuView's
+//! sensing cycle produces, so the bridge never imports `SensingUpdate` /
+//! `TrustedOutput` directly.
+//!
+//! ## What P1 ships (honesty — ADR-262 §0 / §6)
+//!
+//! This is **P1 plumbing**: a tested `SensingSnapshot → FieldEvent` conversion
+//! plus the **fail-closed privacy mapping** that is the §3.3 correctness item.
+//! It is **not** wired into the live server (that is P3) and makes **no accuracy
+//! claim** — RuField v0.1 is synthetic end-to-end and RuView's single-link CSI
+//! carries its own caveats. The gates here are round-trip / fusability /
+//! privacy-safety / determinism, not validated F1.
+//!
+//! ## The critical correctness item: the privacy mapping (§3.3)
+//!
+//! RuView's `Derived` class has byte value `1` (below `Anonymous = 2`) yet
+//! carries an identity embedding. The bridge maps it to **P4/P5 by information
+//! content, never P1** — see [`map_privacy`]. Mapping off the byte would leak
+//! identity as low-privacy; [`map_privacy`] (and its dedicated test
+//! `derived_identity_never_maps_to_low_privacy`) exist specifically to prevent
+//! that.
+//!
+//! ## Example
+//!
+//! ```
+//! use wifi_densepose_rufield::{
+//!     snapshot_to_field_event, SensingSnapshot, SensingFeatures, SensingClass,
+//!     RuViewPrivacyClass,
+//! };
+//! use rufield_provenance::{Signer, is_fusable};
+//!
+//! let snap = SensingSnapshot {
+//!     timestamp_ns: 1_791_986_400_000_000_000,
+//!     features: SensingFeatures {
+//!         mean_rssi: -55.0,
+//!         variance: 0.4,
+//!         motion_band_power: 2.0,
+//!         breathing_band_power: 0.3,
+//!         dominant_freq_hz: 0.25,
+//!         change_points: 1,
+//!         spectral_power: 3.0,
+//!     },
+//!     classification: SensingClass {
+//!         motion_level: "low".into(),
+//!         presence: true,
+//!         confidence: 0.82,
+//!     },
+//!     signal_field: None,
+//!     trust_class: RuViewPrivacyClass::Anonymous,
+//!     demoted: false,
+//!     identity_bound: false,
+//!     node_id: "esp32_room_01".into(),
+//! };
+//!
+//! let signer = Signer::from_seed(b"adr-262-bridge-seed-32-bytes-ok!");
+//! let event = snapshot_to_field_event(&snap, &signer);
+//! assert!(is_fusable(&event)); // ed25519-signed, non-synthetic ⇒ fusable
+//! ```
+
+#![forbid(unsafe_code)]
+
+pub mod bridge;
+pub mod privacy;
+pub mod snapshot;
+
+pub use bridge::{snapshot_egress_class, snapshot_to_field_event};
+pub use privacy::{apply_demotion_floor, egress_class, map_privacy};
+pub use snapshot::{
+    RuViewPrivacyClass, SensingClass, SensingFeatures, SensingSnapshot, SignalField,
+};
+
+// Re-export the rufield surface a bridge consumer needs, so callers depend on
+// one crate.
+pub use rufield_core::{Destination, FieldEvent, Modality, PrivacyClass, PrivacyDecision};
+pub use rufield_fusion::RuFieldFusion;
+pub use rufield_privacy::{DefaultPrivacyGuard, PrivacyPolicy};
+pub use rufield_provenance::{is_fusable, verify_event, Signer};
+
+/// Whether a mapped [`PrivacyClass`] may be surfaced on a **network** egress
+/// (ADR-262 §4 P3 — the live `/api/field` / `/ws/field` surface must respect
+/// the same default §10 network policy `/ws/sensing` honours, never emitting
+/// above-policy data).
+///
+/// **Fail-closed for a live, unattended surface.** The live RuView surface has
+/// **no per-event consent or identity-binding ceremony** — so this is *stricter*
+/// than [`DefaultPrivacyGuard::authorize`]: it requires BOTH that the default
+/// guard would `Allow` the class onto [`Destination::Network`] with **no consent
+/// granted**, AND that the class is at or below the default network ceiling
+/// ([`PrivacyClass::P2`]). The second clause deliberately drops P4/P5 even
+/// though the guard's consent/identity *exceptions* would let an explicitly
+/// consented/identity-bound P4/P5 through — because the live surface cannot
+/// honestly assert that consent. Net effect: only **P1/P2** leave the box; P0
+/// (raw) and P3/P4/P5 are held edge-local.
+///
+/// This is the privacy-safety pin for the live surface: a `Derived` cycle maps
+/// to P4 (or P5 when identity-bound) via [`map_privacy`] and is therefore
+/// **never** surfaced as a network event — neither as a low-privacy P1 (the
+/// §3.3 mapping trap) nor at all.
+#[must_use]
+pub fn network_egress_allowed(class: PrivacyClass, identity_bound: bool) -> bool {
+    use rufield_core::PrivacyGuard;
+    let guard_allows = matches!(
+        DefaultPrivacyGuard::default().authorize(
+            class,
+            Destination::Network,
+            false, // no per-event consent on the live network surface (fail-closed)
+            identity_bound,
+        ),
+        PrivacyDecision::Allow
+    );
+    // Additionally cap at the default network ceiling: an unattended live
+    // surface never asserts the P4-consent / P5-identity exception.
+    guard_allows && class <= PrivacyClass::P2
+}
@@ -0,0 +1,147 @@
+//! The ADR-262 §3.3 privacy mapping — the critical correctness item.
+//!
+//! RuView's effective `PrivacyClass` (4 byte-level classes) is the source of
+//! truth; the bridge maps it onto RuField's `PrivacyClass` (P0–P5) **at the
+//! egress boundary, by information content, NEVER by byte value**.
+//!
+//! ## The trap (ADR-262 §3, §6)
+//!
+//! RuView's `Derived` has byte value `1`, which sorts *below* `Anonymous`
+//! (byte `2`). A naive byte-mapping (`Derived = 1 → P1`) would leak
+//! identity-bearing features (`identity_embedding`, `identity_risk_score`) as a
+//! **low-privacy P1** event. Because `Derived` carries derived *identity*, it
+//! must map to the **biometric/identity tier (P4/P5)** — never P1. This is the
+//! single most dangerous mapping mistake; it gets a dedicated test
+//! (`derived_identity_never_maps_to_low_privacy`).
+//!
+//! ## Fail-closed
+//!
+//! [`RuViewPrivacyClass`] is a closed enum, so there is no runtime "unknown"
+//! value to receive — but the mapping is written `match`-exhaustively with an
+//! explicit, documented arm per class, and the `demoted`/`identity_bound`
+//! overlays only ever move the result **toward more privacy**, never less.
+
+use crate::snapshot::RuViewPrivacyClass;
+use rufield_core::PrivacyClass;
+
+/// Map a RuView effective `PrivacyClass` onto a RuField `PrivacyClass`
+/// (ADR-262 §3.3), by information content.
+///
+/// | RuView (byte) | → RuField | Rationale |
+/// |---|---|---|
+/// | `Raw` (0) | `P0` | raw CSI waveform |
+/// | `Derived` (1) | `P4` (or `P5` if `identity_bound`) | derived **identity** features ⇒ biometric/identity tier, **not** P1 |
+/// | `Anonymous` (2) | `P2` | occupancy / motion only |
+/// | `Restricted` (3) | `P2` (raw suppressed) | matches `suppress_raw_outputs` |
+///
+/// `identity_bound` only promotes `Derived` (already identity-derived) from P4
+/// to P5; it can never lower the class.
+#[must_use]
+pub fn map_privacy(ruview_class: RuViewPrivacyClass, identity_bound: bool) -> PrivacyClass {
+    match ruview_class {
+        // Raw CSI amplitude → raw waveform tier.
+        RuViewPrivacyClass::Raw => PrivacyClass::P0,
+
+        // THE CRITICAL ARM (§3.3 / §6): `Derived` carries identity. Map by
+        // information content to the biometric/identity tier P4, and to P5 when
+        // the surface is bound to a named identity. NEVER P1.
+        RuViewPrivacyClass::Derived => {
+            if identity_bound {
+                PrivacyClass::P5
+            } else {
+                PrivacyClass::P4
+            }
+        }
+
+        // Anonymous occupancy / motion aggregate → P2.
+        RuViewPrivacyClass::Anonymous => PrivacyClass::P2,
+
+        // Restricted: occupancy with risk score / hash stripped and raw
+        // suppressed. Capped at P2 (occupancy tier), matching
+        // `EngineBridge::suppress_raw_outputs` (`engine_bridge.rs:240`).
+        RuViewPrivacyClass::Restricted => PrivacyClass::P2,
+    }
+}
+
+/// The §4 P2 gate (b) monotonicity overlay: a governed-engine **demotion**
+/// (`TrustedOutput.demoted == true`) must never let the emitted class fall
+/// below P2 (occupancy floor), and raw is suppressed.
+///
+/// This is applied *after* [`map_privacy`] and can only raise the class
+/// (toward more privacy) — it is fail-closed by construction.
+#[must_use]
+pub fn apply_demotion_floor(class: PrivacyClass, demoted: bool) -> PrivacyClass {
+    if demoted && class < PrivacyClass::P2 {
+        PrivacyClass::P2
+    } else {
+        class
+    }
+}
+
+/// The full egress class for a snapshot: information-content mapping with the
+/// demotion floor overlaid. This is what the bridge stamps on the emitted
+/// `FieldEvent`.
+#[must_use]
+pub fn egress_class(
+    ruview_class: RuViewPrivacyClass,
+    identity_bound: bool,
+    demoted: bool,
+) -> PrivacyClass {
+    apply_demotion_floor(map_privacy(ruview_class, identity_bound), demoted)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn derived_maps_to_identity_tier_not_p1() {
+        // The single most dangerous mapping mistake: Derived (byte 1) must NOT
+        // become P1. It carries identity ⇒ P4, or P5 if identity-bound.
+        assert_eq!(map_privacy(RuViewPrivacyClass::Derived, false), PrivacyClass::P4);
+        assert_eq!(map_privacy(RuViewPrivacyClass::Derived, true), PrivacyClass::P5);
+    }
+
+    #[test]
+    fn full_table_matches_adr_262_section_3_3() {
+        assert_eq!(map_privacy(RuViewPrivacyClass::Raw, false), PrivacyClass::P0);
+        assert_eq!(map_privacy(RuViewPrivacyClass::Derived, false), PrivacyClass::P4);
+        assert_eq!(map_privacy(RuViewPrivacyClass::Anonymous, false), PrivacyClass::P2);
+        assert_eq!(map_privacy(RuViewPrivacyClass::Restricted, false), PrivacyClass::P2);
+    }
+
+    #[test]
+    fn mapping_ignores_non_monotonic_byte_value() {
+        // Derived's byte (1) is *below* Anonymous's byte (2), but Derived's
+        // mapped class must be *above* Anonymous's mapped class — proving the
+        // mapping uses information content, not the byte.
+        assert!(RuViewPrivacyClass::Derived.raw_byte() < RuViewPrivacyClass::Anonymous.raw_byte());
+        assert!(
+            map_privacy(RuViewPrivacyClass::Derived, false)
+                > map_privacy(RuViewPrivacyClass::Anonymous, false)
+        );
+    }
+
+    #[test]
+    fn demotion_floor_only_raises_privacy() {
+        // Raw → P0, but a demoted cycle floors to P2 with raw suppressed.
+        assert_eq!(apply_demotion_floor(PrivacyClass::P0, true), PrivacyClass::P2);
+        // Already-high classes are never lowered by the floor.
+        assert_eq!(apply_demotion_floor(PrivacyClass::P5, true), PrivacyClass::P5);
+        // No demotion ⇒ unchanged.
+        assert_eq!(apply_demotion_floor(PrivacyClass::P0, false), PrivacyClass::P0);
+    }
+
+    #[test]
+    fn identity_bound_only_promotes() {
+        // identity_bound never lowers privacy; it only promotes Derived P4→P5.
+        for c in [
+            RuViewPrivacyClass::Raw,
+            RuViewPrivacyClass::Derived,
+            RuViewPrivacyClass::Anonymous,
+            RuViewPrivacyClass::Restricted,
+        ] {
+            assert!(map_privacy(c, true) >= map_privacy(c, false));
+        }
+    }
+}
@@ -0,0 +1,152 @@
+//! Owned, primitive input types for the ADR-262 bridge.
+//!
+//! These deliberately **mirror** the shapes RuView's sensing cycle produces
+//! (the `/ws/sensing` `SensingUpdate` build site at
+//! `wifi-densepose-sensing-server/src/main.rs:~5938` and the `TrustedOutput`
+//! trust state surfaced via `EngineBridge` at `main.rs:~5886`) **without
+//! importing** RuView's internal crates. Keeping the bridge an anti-corruption
+//! layer (ADR-262 §5.4) means it takes owned primitives, not `SensingUpdate`
+//! or `TrustedOutput` directly — so this crate never depends on
+//! `wifi-densepose-sensing-server`.
+
+use serde::{Deserialize, Serialize};
+
+/// The CSI feature scalars RuView publishes on every `/ws/sensing` cycle.
+///
+/// Mirrors `FeatureInfo` (`main.rs:368-377`). All values are in RuView's own
+/// units; the bridge normalizes them into `Observation.features` for fusion.
+#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
+pub struct SensingFeatures {
+    /// Mean RSSI across the CSI window (dBm).
+    pub mean_rssi: f64,
+    /// CSI amplitude variance.
+    pub variance: f64,
+    /// Motion-band spectral power (drives `motion_energy`).
+    pub motion_band_power: f64,
+    /// Breathing-band spectral power (drives `breathing_band`).
+    pub breathing_band_power: f64,
+    /// Dominant frequency of the CSI window (Hz).
+    pub dominant_freq_hz: f64,
+    /// Number of change points detected in the window (drives `transient`).
+    pub change_points: usize,
+    /// Total spectral power of the window.
+    pub spectral_power: f64,
+}
+
+/// The RuView classification block. Mirrors `ClassificationInfo`
+/// (`main.rs:379-384`).
+#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
+pub struct SensingClass {
+    /// Coarse motion level label (e.g. `"none"`, `"low"`, `"high"`).
+    pub motion_level: String,
+    /// Whether a person is present.
+    pub presence: bool,
+    /// Classification confidence `0.0..=1.0`.
+    pub confidence: f64,
+}
+
+/// A RuView signal field — a floor-plane grid of field values. Mirrors
+/// `SignalField` (`main.rs:386-390`). The bridge derives a real position from
+/// the strongest field peak (like `field_localize`) and **never fabricates**
+/// coordinates when this is absent.
+#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
+pub struct SignalField {
+    /// Grid dimensions `[x, y, z]`.
+    pub grid_size: [usize; 3],
+    /// Row-major flattened field values; `len() == grid_size.product()`.
+    pub values: Vec<f64>,
+}
+
+impl SignalField {
+    /// Index `[x, y, z]` of the strongest field cell, or `None` if the grid is
+    /// empty / all-NaN. This is the honest "strongest field peak" readout that
+    /// `field_localize` (`field_localize.rs:16-27`) exposes — **not** calibrated
+    /// triangulation.
+    #[must_use]
+    pub fn peak_cell(&self) -> Option<[i32; 3]> {
+        let [nx, ny, nz] = self.grid_size;
+        if nx == 0 || ny == 0 || nz == 0 || self.values.is_empty() {
+            return None;
+        }
+        let mut best_idx: Option<usize> = None;
+        let mut best_val = f64::NEG_INFINITY;
+        for (i, &v) in self.values.iter().enumerate() {
+            if v.is_finite() && v > best_val {
+                best_val = v;
+                best_idx = Some(i);
+            }
+        }
+        let idx = best_idx?;
+        // Row-major: idx = ((x * ny) + y) * nz + z.
+        let z = idx % nz;
+        let y = (idx / nz) % ny;
+        let x = idx / (nz * ny);
+        Some([x as i32, y as i32, z as i32])
+    }
+}
+
+/// RuView's effective privacy class (the `effective_class` / privacy byte on
+/// `TrustedOutput`).
+///
+/// This **mirrors** `wifi_densepose_bfld::PrivacyClass` (`bfld/lib.rs:103-116`,
+/// `#[repr(u8)]`) — the four byte-level classes. The byte values are
+/// **deliberately non-monotonic in information content**: `Derived = 1` carries
+/// an identity embedding yet sorts *below* `Anonymous = 2`. The bridge's
+/// `map_privacy` must therefore map by information content, NEVER by byte value
+/// (ADR-262 §3.3 — the central correctness item).
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Serialize, Deserialize)]
+#[serde(rename_all = "snake_case")]
+pub enum RuViewPrivacyClass {
+    /// Byte `0` — raw CSI amplitude, local-only.
+    Raw,
+    /// Byte `1` — derived **identity** features (identity_embedding +
+    /// identity_risk_score), LAN-only. The dangerous one (§3.3).
+    Derived,
+    /// Byte `2` — aggregate occupancy / motion, no identity.
+    Anonymous,
+    /// Byte `3` — care/regulated: occupancy minus risk score and hash;
+    /// raw suppressed.
+    Restricted,
+}
+
+impl RuViewPrivacyClass {
+    /// The raw byte value used by RuView's `#[repr(u8)]` enum
+    /// (`bfld/lib.rs:103`). Exposed only so callers can demonstrate the
+    /// non-monotonicity trap in tests; the bridge never maps off this byte.
+    #[must_use]
+    pub fn raw_byte(self) -> u8 {
+        match self {
+            RuViewPrivacyClass::Raw => 0,
+            RuViewPrivacyClass::Derived => 1,
+            RuViewPrivacyClass::Anonymous => 2,
+            RuViewPrivacyClass::Restricted => 3,
+        }
+    }
+}
+
+/// One sensing cycle, as a bridge input. Mirrors the join of `SensingUpdate`
+/// (features + classification + signal_field) and the `TrustedOutput` trust
+/// state (`trust_class`) that ADR-262 §1.2 / P1 say must be done at the bridge.
+#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
+pub struct SensingSnapshot {
+    /// Capture time, nanoseconds since Unix epoch (the real `SensingUpdate`
+    /// timestamp, ns).
+    pub timestamp_ns: u64,
+    /// CSI feature scalars (`/ws/sensing` feature set).
+    pub features: SensingFeatures,
+    /// Classification (motion level / presence / confidence).
+    pub classification: SensingClass,
+    /// Optional signal field for a real position readout.
+    pub signal_field: Option<SignalField>,
+    /// RuView's effective privacy class (the source-of-truth, §3.3).
+    pub trust_class: RuViewPrivacyClass,
+    /// Whether the governed engine demoted this cycle (`TrustedOutput.demoted`).
+    /// When `true` the emitted event must be `>= P2` and raw suppressed
+    /// (§3.3 / §4 P2 gate (b)).
+    pub demoted: bool,
+    /// Whether this cycle's identity surface is bound to an enrolled identity
+    /// (RuView's `identity_bound`). Promotes `Derived` to P5 when set.
+    pub identity_bound: bool,
+    /// Stable node id (e.g. `"esp32_room_01"`).
+    pub node_id: String,
+}
@@ -0,0 +1,172 @@
+//! ADR-262 P1 acceptance gates. Each test below IS an acceptance criterion.
+//!
+//! - round-trip: snapshot → FieldEvent → serde → equal
+//! - is_fusable: emitted event passes the §11 fusability invariant
+//! - fusion ingest accept: `RuFieldFusion::ingest` accepts it + `infer` runs
+//! - privacy safety: `Derived` never maps to a low-privacy class (the §3.3 trap)
+//! - determinism: same snapshot + same signer seed → identical event
+
+use rufield_core::{FusionEngine, InferenceQuery, PrivacyClass};
+use rufield_fusion::RuFieldFusion;
+use rufield_provenance::{is_fusable, verify_event, Signer};
+use wifi_densepose_rufield::{
+    map_privacy, snapshot_to_field_event, RuViewPrivacyClass, SensingClass, SensingFeatures,
+    SensingSnapshot, SignalField,
+};
+
+const SEED: &[u8; 32] = b"adr-262-bridge-seed-32-bytes-ok!";
+
+fn signer() -> Signer {
+    Signer::from_seed(SEED)
+}
+
+/// A representative snapshot with a real signal field (so a position is derived).
+fn sample_snapshot() -> SensingSnapshot {
+    SensingSnapshot {
+        timestamp_ns: 1_791_986_400_123_456_789,
+        features: SensingFeatures {
+            mean_rssi: -52.5,
+            variance: 0.73,
+            motion_band_power: 2.4,
+            breathing_band_power: 0.6,
+            dominant_freq_hz: 0.27,
+            change_points: 2,
+            spectral_power: 4.1,
+        },
+        classification: SensingClass {
+            motion_level: "high".into(),
+            presence: true,
+            confidence: 0.88,
+        },
+        signal_field: Some(SignalField {
+            grid_size: [2, 1, 2],
+            // peak at flat index 2 → cell [1,0,0]
+            values: vec![0.1, 0.2, 0.9, 0.3],
+        }),
+        trust_class: RuViewPrivacyClass::Anonymous,
+        demoted: false,
+        identity_bound: false,
+        node_id: "esp32_room_01".into(),
+    }
+}
+
+#[test]
+fn gate_round_trip_serde_equal() {
+    let ev = snapshot_to_field_event(&sample_snapshot(), &signer());
+    let json = serde_json::to_string(&ev).expect("serialize");
+    let back: rufield_core::FieldEvent = serde_json::from_str(&json).expect("deserialize");
+    assert_eq!(ev, back, "FieldEvent must round-trip through serde unchanged");
+}
+
+#[test]
+fn gate_is_fusable_verified_receipt() {
+    let ev = snapshot_to_field_event(&sample_snapshot(), &signer());
+    // Real (non-synthetic) event must carry a verifying ed25519 signature.
+    assert!(!ev.provenance.synthetic, "live event must NOT be marked synthetic");
+    assert!(ev.provenance.signature_hex.is_some(), "must be signed");
+    assert!(verify_event(&ev).is_ok(), "signature must verify");
+    assert!(is_fusable(&ev), "verified receipt ⇒ fusable (§11 invariant)");
+}
+
+#[test]
+fn gate_fusion_ingest_accepts_and_infers() {
+    let ev = snapshot_to_field_event(&sample_snapshot(), &signer());
+    let mut engine = RuFieldFusion::new();
+    engine.ingest(ev).expect("fusion engine must accept the signed event");
+    // infer() must run without error (may or may not produce inferences).
+    let inferences = engine
+        .infer(&InferenceQuery::all())
+        .expect("infer() must run");
+    // The graph recorded the event/sensor provenance nodes.
+    assert!(
+        engine.graph().node_count() >= 2,
+        "ingest should record sensor + event nodes"
+    );
+    let _ = inferences; // count is not an accuracy claim
+}
+
+#[test]
+fn gate_privacy_safety_derived_never_maps_to_low_privacy() {
+    // THE critical §3.3 gate. Derived carries identity ⇒ P4/P5, NEVER P1.
+    let p4 = map_privacy(RuViewPrivacyClass::Derived, false);
+    let p5 = map_privacy(RuViewPrivacyClass::Derived, true);
+    assert_eq!(p4, PrivacyClass::P4);
+    assert_eq!(p5, PrivacyClass::P5);
+    assert!(p4 >= PrivacyClass::P4, "Derived must be in the identity tier");
+    assert_ne!(p4, PrivacyClass::P1, "Derived must NEVER be P1");
+
+    // And end-to-end: an emitted event from a Derived snapshot must be P4/P5.
+    let mut snap = sample_snapshot();
+    snap.trust_class = RuViewPrivacyClass::Derived;
+    let ev = snapshot_to_field_event(&snap, &signer());
+    assert!(
+        ev.observation.privacy_class >= PrivacyClass::P4,
+        "emitted Derived event must be P4 or P5, got {:?}",
+        ev.observation.privacy_class
+    );
+    assert_eq!(ev.observation.privacy_class, ev.tensor.privacy_class);
+}
+
+/// Full §3.3 table over every RuView class → expected RuField class.
+#[test]
+fn gate_privacy_table_over_every_ruview_class() {
+    let cases = [
+        (RuViewPrivacyClass::Raw, false, PrivacyClass::P0),
+        (RuViewPrivacyClass::Derived, false, PrivacyClass::P4),
+        (RuViewPrivacyClass::Derived, true, PrivacyClass::P5),
+        (RuViewPrivacyClass::Anonymous, false, PrivacyClass::P2),
+        (RuViewPrivacyClass::Restricted, false, PrivacyClass::P2),
+    ];
+    for (ruview, id_bound, expected) in cases {
+        assert_eq!(
+            map_privacy(ruview, id_bound),
+            expected,
+            "{ruview:?} (identity_bound={id_bound}) must map to {expected:?}"
+        );
+    }
+}
+
+/// Fail-closed: a demoted Raw snapshot must NOT emit P0 (raw) — it floors to P2.
+#[test]
+fn gate_demotion_is_fail_closed() {
+    let mut snap = sample_snapshot();
+    snap.trust_class = RuViewPrivacyClass::Raw; // would be P0
+    snap.demoted = true; // governed engine demotion
+    let ev = snapshot_to_field_event(&snap, &signer());
+    assert!(
+        ev.observation.privacy_class >= PrivacyClass::P2,
+        "demoted cycle must floor to >= P2, got {:?}",
+        ev.observation.privacy_class
+    );
+}
+
+#[test]
+fn gate_determinism_same_seed_identical_event() {
+    let snap = sample_snapshot();
+    let a = snapshot_to_field_event(&snap, &Signer::from_seed(SEED));
+    let b = snapshot_to_field_event(&snap, &Signer::from_seed(SEED));
+    assert_eq!(a, b, "same snapshot + same signer seed ⇒ identical event");
+    // Including the signature (ed25519 is deterministic).
+    assert_eq!(a.provenance.signature_hex, b.provenance.signature_hex);
+}
+
+#[test]
+fn no_fabricated_position_when_field_absent() {
+    let mut snap = sample_snapshot();
+    snap.signal_field = None;
+    let ev = snapshot_to_field_event(&snap, &signer());
+    assert!(ev.observation.range_m.is_none(), "no field ⇒ no fabricated range");
+    assert!(ev.observation.space_cell.is_none(), "no field ⇒ no fabricated cell");
+    assert!(
+        ev.observation.motion_vector.is_none(),
+        "no field ⇒ no fabricated motion vector"
+    );
+}
+
+#[test]
+fn derives_real_position_from_field_peak() {
+    let ev = snapshot_to_field_event(&sample_snapshot(), &signer());
+    // peak at flat index 2, grid [2,1,2] (row-major) → cell [1,0,0]
+    assert_eq!(ev.observation.space_cell, Some([1, 0, 0]));
+    assert_eq!(ev.observation.range_m, Some(1.0));
+}
@@ -63,6 +63,13 @@ wifi-densepose-worldgraph = { version = "0.3.0", path = "../wifi-densepose-world
 wifi-densepose-bfld = { version = "0.3.1", path = "../wifi-densepose-bfld", default-features = false }
 wifi-densepose-geo = { version = "0.1.0", path = "../wifi-densepose-geo" }

+# ADR-262 P3: live RuField surface. The thin anti-corruption bridge that turns
+# this server's governed sensing cycle into signed RuField `FieldEvent`s on
+# `/api/field` + `/ws/field`. It path-deps the standalone `vendor/rufield`
+# submodule (it is the single coupling point — ADR-262 §5.4) and pulls in no
+# RuView internal crate, so the dep surface added here is just the bridge.
+wifi-densepose-rufield = { version = "0.3.0", path = "../wifi-densepose-rufield" }
+
 # midstream — real-time introspection / low-latency tap (ADR-099 D1).
 # Two crates only, on purpose: scheduler / neural-solver / strange-loop are
 # explicitly out of scope of ADR-099 (D5).
@@ -23,6 +23,10 @@ pub mod model_format;
 pub mod mqtt;
 pub mod path_safety;
 pub mod semantic;
+/// ADR-262 P3: the live RuField surface — turns the governed sensing cycle into
+/// signed RuField `FieldEvent`s on the additive `/api/field` + `/ws/field`
+/// endpoints, via the `wifi-densepose-rufield` anti-corruption bridge.
+pub mod rufield_surface;
 pub mod rvf_container;
 pub mod rvf_pipeline;
 pub mod sona;
@@ -26,7 +26,7 @@ mod vital_signs;

 // Training pipeline modules (exposed via lib.rs)
 use wifi_densepose_sensing_server::{
-    dataset, embedding, error_response, graph_transformer, trainer,
+    dataset, embedding, error_response, graph_transformer, rufield_surface, trainer,
 };

 use ruvector_mincut::{DynamicMinCut, MinCutBuilder};
@@ -1093,6 +1093,14 @@ struct AppStateInner {
    pub(crate) dedup_factor: f64,
    /// Data directory for persisting runtime config (parent of `firmware_dir`).
    pub(crate) data_dir: std::path::PathBuf,
+    /// ADR-262 P3: the live RuField surface. Holds the dedicated ed25519 signer
+    /// + a bounded ring of recent signed `FieldEvent`s + the `/ws/field`
+    /// broadcast topic. The governed sensing cycle calls `emit()` on it once per
+    /// cycle (joining `SensingUpdate` features/classification/signal_field with
+    /// the `TrustedOutput` trust class); `/api/field` + `/ws/field` read it.
+    /// Held behind its own `Arc<RwLock<_>>` so the additive field router can
+    /// take it as state without re-locking `AppStateInner`.
+    field_surface: rufield_surface::FieldState,
 }

 /// If no ESP32 frame arrives within this duration, source reverts to offline.
@@ -4000,6 +4008,80 @@ fn derive_single_person_pose(
 /// the strongest peak so they remain co-located with real energy rather than at
 /// a fake origin; if the field has no peak above threshold the position stays at
 /// `[0,0,0]` and `motion_score` still reflects real motion power.
+/// ADR-262 P3: emit one signed RuField `FieldEvent` for this sensing cycle.
+///
+/// Joins the cycle's [`SensingUpdate`] (features / classification /
+/// signal_field) with the governed engine's trust state (`effective_class` /
+/// `demoted`, recorded on `engine_bridge` by `observe_cycle`) into a
+/// `SensingSnapshot`, then surfaces it via the P1 bridge on `/api/field` +
+/// `/ws/field`. The bridge maps privacy by information content and the surface
+/// applies the §10 network egress gate, so above-policy cycles never reach the
+/// wire.
+///
+/// **No phantom events:** an empty/no-presence cycle (`presence == false`)
+/// emits nothing — there is no person to describe, so no event is fabricated
+/// (ADR-262 §4 P3 / §6). Cycles before the governed engine has produced a trust
+/// class are likewise skipped (no class ⇒ nothing honest to stamp).
+///
+/// `identity_bound` is `false` on the live path: RuView's live cycle does not
+/// bind an enrolled identity to the surface yet (that is a per-room-calibration
+/// / AETHER concern, ADR-262 §8 Q4). This is conservative for egress — it only
+/// ever *lowers* a Derived cycle from P5 to P4, both of which are already held
+/// edge-local, so it cannot leak.
+fn emit_rufield_event(s: &AppStateInner, update: &SensingUpdate, node_id: u8) {
+    // No-presence ⇒ no phantom event.
+    if !update.classification.presence {
+        return;
+    }
+    // Need a governed trust class before we can honestly stamp privacy.
+    let Some(effective_class) = s.engine_bridge.effective_class() else {
+        return;
+    };
+
+    let timestamp_ns = if update.timestamp.is_finite() && update.timestamp > 0.0 {
+        (update.timestamp * 1_000_000_000.0) as u64
+    } else {
+        std::time::SystemTime::now()
+            .duration_since(std::time::UNIX_EPOCH)
+            .map(|d| d.as_nanos() as u64)
+            .unwrap_or(0)
+    };
+
+    let snap = rufield_surface::build_snapshot(
+        timestamp_ns,
+        format!("esp32_node_{node_id}"),
+        rufield_surface::SensingFeatures {
+            mean_rssi: update.features.mean_rssi,
+            variance: update.features.variance,
+            motion_band_power: update.features.motion_band_power,
+            breathing_band_power: update.features.breathing_band_power,
+            dominant_freq_hz: update.features.dominant_freq_hz,
+            change_points: update.features.change_points,
+            spectral_power: update.features.spectral_power,
+        },
+        rufield_surface::SensingClass {
+            motion_level: update.classification.motion_level.clone(),
+            presence: update.classification.presence,
+            confidence: update.classification.confidence,
+        },
+        Some(rufield_surface::SignalField {
+            grid_size: update.signal_field.grid_size,
+            values: update.signal_field.values.clone(),
+        }),
+        rufield_surface::ruview_class_from_bfld(effective_class),
+        s.engine_bridge.demoted(),
+        false, // identity_bound — see fn-doc (conservative, cannot leak).
+    );
+
+    // `field_surface` is its own Arc<RwLock<_>>; `try_write` is non-blocking and
+    // never deadlocks against the `s` guard (a different lock). The only other
+    // touchers are the read-only `/api/field` / `/ws/field` handlers, so
+    // contention is negligible; a rare miss just drops one cycle's event.
+    if let Ok(mut fs) = s.field_surface.try_write() {
+        fs.emit(&snap);
+    }
+}
+
 fn attach_field_positions(update: &mut SensingUpdate) {
    let Some(persons) = update.persons.as_mut() else {
        return;
@@ -5990,6 +6072,18 @@ async fn udp_receiver_task(state: SharedState, udp_port: u16) {
                    if let Ok(json) = serde_json::to_string(&update) {
                        let _ = s.tx.send(json);
                    }
+
+                    // ── ADR-262 P3: emit a signed RuField FieldEvent ────────
+                    // Join this cycle's SensingUpdate (features / classification
+                    // / signal_field) with the governed engine's trust state
+                    // (effective_class / demoted, recorded by `observe_cycle`
+                    // above) into a `SensingSnapshot`, and surface it on
+                    // `/api/field` + `/ws/field` via the P1 bridge. Only cycles
+                    // whose mapped privacy class clears the §10 network egress
+                    // gate are surfaced (P1/P2); a `Derived → P4/P5` cycle is
+                    // held edge-local. `presence == false` ⇒ no phantom event.
+                    emit_rufield_event(&s, &update, node_id);
+
                    s.latest_update = Some(update);

                    // Evict stale nodes every 100 ticks to prevent memory leak.
@@ -7322,6 +7416,13 @@ async fn main() {
        );
    }

+    // ADR-262 P3: build the live RuField surface (dedicated ed25519 signer from
+    // WDP_RUFIELD_SIGNING_SEED, else a logged dev default). The same Arc is
+    // stored in AppStateInner (so the sensing loop can `emit()` per cycle) and
+    // cloned into the additive `/api/field` + `/ws/field` router below.
+    let field_surface: rufield_surface::FieldState =
+        Arc::new(RwLock::new(rufield_surface::FieldSurface::from_env()));
+
    let state: SharedState = Arc::new(RwLock::new(AppStateInner {
        latest_update: None,
        rssi_history: VecDeque::new(),
@@ -7424,6 +7525,7 @@ async fn main() {
        // ADR-044 §5.3: runtime-configurable dedup factor (persisted).
        dedup_factor: runtime_config.dedup_factor,
        data_dir: data_dir.clone(),
+        field_surface: field_surface.clone(),
    }));

    // Start background tasks from the resolved plan (issue #1004).
@@ -7497,11 +7599,15 @@ async fn main() {
    let ws_app = Router::new()
        .route("/ws/sensing", get(ws_sensing_handler))
        .route("/health", get(health))
+        .with_state(ws_state)
+        // ADR-262 P3: additive `/ws/field` (+ `/api/field`) on the WS port too,
+        // so a client on :8765 can stream signed RuField FieldEvents alongside
+        // `/ws/sensing`. Merged with its own FieldState (different state type).
+        .merge(rufield_surface::router(field_surface.clone()))
        .layer(axum::middleware::from_fn_with_state(
            host_allowlist.clone(),
            wifi_densepose_sensing_server::host_validation::require_allowed_host,
-        ))
-        .with_state(ws_state);
+        ));

    let ws_addr = SocketAddr::from((bind_ip, args.ws_port));
    let ws_listener = tokio::net::TcpListener::bind(ws_addr)
@@ -7615,15 +7721,24 @@ async fn main() {
            bearer_auth_state.clone(),
            wifi_densepose_sensing_server::bearer_auth::require_bearer,
        ))
+        .with_state(state.clone())
+        // ADR-262 P3: additive RuField surface (`/api/field` + `/ws/field`).
+        // Merged AFTER `.with_state` (so http_app is already `Router<()>` and
+        // can absorb the field router's own `FieldState`). These routes sit
+        // OUTSIDE `/api/v1/*` so they are not bearer-gated, but the
+        // host-validation layer below still applies (it is added last, so it
+        // runs first, over the whole merged router). The surface's own §10
+        // egress gate is what keeps above-policy classes off the wire.
+        .merge(rufield_surface::router(field_surface.clone()))
        // DNS-rebinding defense: applied last so it runs first on the request
        // path (axum layers run outermost-in). Rejects requests whose `Host`
        // header is not in the allowlist before any handler — including
-        // `/health` and `/ws/*` — observes the body.
+        // `/health`, `/ws/*`, and the merged `/api/field` + `/ws/field` —
+        // observes the body.
        .layer(axum::middleware::from_fn_with_state(
            host_allowlist.clone(),
            wifi_densepose_sensing_server::host_validation::require_allowed_host,
-        ))
-        .with_state(state.clone());
+        ));

    let http_addr = SocketAddr::from((bind_ip, args.http_port));
    let http_listener = tokio::net::TcpListener::bind(http_addr)
@@ -0,0 +1,439 @@
+//! ADR-262 **P3** — the live RuField surface.
+//!
+//! This is the data-path wiring that turns RuView's governed sensing cycle into
+//! signed RuField [`FieldEvent`]s on two **additive** network endpoints:
+//!
+//! - `GET /api/field`  — the most recent surfaced `FieldEvent`(s) as JSON;
+//! - `GET /ws/field`   — a WebSocket that streams each cycle's `FieldEvent`
+//!   (mirrors the `/ws/sensing` broadcast-subscribe pattern).
+//!
+//! It is purely additive: `/ws/sensing` and every existing endpoint are
+//! unchanged. The conversion itself lives entirely in the P1
+//! [`wifi_densepose_rufield`] anti-corruption bridge (ADR-262 §5.4 — the single
+//! coupling point); this module only (a) holds the dedicated signer + a bounded
+//! ring buffer of recent events in server state, (b) builds a
+//! [`SensingSnapshot`] from the **same real data** the cycle already produced
+//! (`SensingUpdate` features/classification/signal_field joined with the
+//! governed-engine [`TrustedOutput`] trust state at `main.rs:~5886`/`:~5938`),
+//! and (c) applies the §10 network egress gate so above-policy classes never
+//! reach the wire.
+//!
+//! ## Honesty (ADR-262 §0 / §6)
+//!
+//! This wires **real** RuView sensing into RuField events on a live endpoint,
+//! but: (a) it is the **single-link CSI** sensing with its existing caveats —
+//! there is **no validated room-coordinate accuracy** (`field_localize` says so;
+//! positions are "strongest field peak", not triangulation); (b) the signing
+//! key is a **dedicated dev/sensing key** pending the ADR-262 §8 Q1 ownership
+//! decision (reusing the `cog-ha-matter` Ed25519 key is the **deferred P2**
+//! call — P3 deliberately uses a standalone key so it does not pre-empt that);
+//! (c) **no accuracy is claimed.** The win is narrowly: "RuView's live sensing
+//! now speaks RuField on `/ws/field`."
+
+use std::collections::VecDeque;
+use std::sync::Arc;
+
+use axum::{
+    extract::{
+        ws::{Message, WebSocket, WebSocketUpgrade},
+        State,
+    },
+    response::{IntoResponse, Json},
+};
+use tokio::sync::{broadcast, RwLock};
+
+// Re-export the bridge input types `main.rs` needs to build a snapshot, so the
+// server-side call site depends only on `rufield_surface` (the server seam).
+pub use wifi_densepose_rufield::{
+    network_egress_allowed, snapshot_to_field_event, FieldEvent, RuViewPrivacyClass,
+    SensingClass, SensingFeatures, SensingSnapshot, Signer, SignalField,
+};
+
+/// How many recent surfaced `FieldEvent`s the ring buffer retains. Small and
+/// bounded — this is a live tap, not a store (ADR-262 §4 P3 "small bounded ring
+/// buffer of recent events").
+pub const FIELD_RING_CAPACITY: usize = 64;
+
+/// Broadcast channel depth for `/ws/field`. Matches the `/ws/sensing` `tx`
+/// channel size (256) so a slow field client drops messages rather than
+/// stalling the sensing loop.
+pub const FIELD_BROADCAST_CAPACITY: usize = 256;
+
+/// Environment variable carrying the 32-byte hex/raw signing seed for the
+/// dedicated RuField sensing signer. When unset, a deterministic dev default is
+/// used (with a logged warning). See [`FieldSurface::from_env`].
+pub const SIGNING_SEED_ENV: &str = "WDP_RUFIELD_SIGNING_SEED";
+
+/// Deterministic dev signing seed used when [`SIGNING_SEED_ENV`] is unset. This
+/// is a **dev/sensing key**, intentionally standalone (ADR-262 §8 Q1 — the
+/// `cog-ha-matter` key reuse is the deferred P2 decision, not pre-empted here).
+const DEV_SIGNING_SEED: &[u8; 32] = b"adr262-ruview-rufield-dev-seed!!";
+
+/// The live RuField surface state held in `AppStateInner` (ADR-262 P3).
+///
+/// Owns the **dedicated** ed25519 [`Signer`], a bounded ring buffer of the most
+/// recent network-surfaced events, and the `/ws/field` broadcast sender.
+pub struct FieldSurface {
+    signer: Signer,
+    /// Bounded ring of recent **network-surfaced** events (most recent last).
+    recent: VecDeque<FieldEvent>,
+    /// Broadcast topic for `/ws/field` (JSON-serialized `FieldEvent`s).
+    tx: broadcast::Sender<String>,
+    /// True when the dev default seed is in use (drives a one-time warning and
+    /// is surfaced in `/api/field` metadata so operators can see they are on a
+    /// dev key).
+    using_dev_key: bool,
+}
+
+impl FieldSurface {
+    /// Build a surface with an explicit 32-byte seed (deterministic signer).
+    #[must_use]
+    pub fn from_seed(seed: &[u8; 32], using_dev_key: bool) -> Self {
+        let (tx, _rx) = broadcast::channel(FIELD_BROADCAST_CAPACITY);
+        Self {
+            signer: Signer::from_seed(seed),
+            recent: VecDeque::with_capacity(FIELD_RING_CAPACITY),
+            tx,
+            using_dev_key,
+        }
+    }
+
+    /// Build a surface from the environment (ADR-262 §4 P3 / open-question 1).
+    ///
+    /// Reads [`SIGNING_SEED_ENV`] as either a 64-char hex string or a raw 32+
+    /// byte UTF-8 value (first 32 bytes used). When unset/invalid it falls back
+    /// to the deterministic [`DEV_SIGNING_SEED`] and logs a `WARN` — the key is
+    /// a standalone **dev/sensing** key, NOT the deferred-P2 `cog-ha-matter`
+    /// key.
+    #[must_use]
+    pub fn from_env() -> Self {
+        match std::env::var(SIGNING_SEED_ENV).ok().and_then(|v| parse_seed(&v)) {
+            Some(seed) => {
+                tracing::info!(
+                    "ADR-262 P3: RuField surface using signing seed from {SIGNING_SEED_ENV} \
+                     (dedicated sensing key)"
+                );
+                Self::from_seed(&seed, false)
+            }
+            None => {
+                tracing::warn!(
+                    "ADR-262 P3: {SIGNING_SEED_ENV} unset/invalid — RuField surface using the \
+                     DETERMINISTIC DEV signing key. This is a dev/sensing key pending the \
+                     ADR-262 §8 Q1 (P2) key-ownership decision; set {SIGNING_SEED_ENV} (64-hex \
+                     or 32-byte value) for a real deployment."
+                );
+                Self::from_seed(DEV_SIGNING_SEED, true)
+            }
+        }
+    }
+
+    /// The public key of the dedicated signer (hex), so consumers can verify
+    /// receipts without the private seed.
+    #[must_use]
+    pub fn signer_pubkey_hex(&self) -> String {
+        self.signer.public_hex()
+    }
+
+    /// Whether the dev default key is in use.
+    #[must_use]
+    pub fn using_dev_key(&self) -> bool {
+        self.using_dev_key
+    }
+
+    /// A `/ws/field` subscription.
+    #[must_use]
+    pub fn subscribe(&self) -> broadcast::Receiver<String> {
+        self.tx.subscribe()
+    }
+
+    /// The most recent surfaced events, oldest→newest.
+    #[must_use]
+    pub fn recent(&self) -> Vec<FieldEvent> {
+        self.recent.iter().cloned().collect()
+    }
+
+    /// Convert one cycle's [`SensingSnapshot`] into a signed [`FieldEvent`],
+    /// apply the §10 network egress gate, and — **iff** the event may leave the
+    /// box — push it into the ring + broadcast it on `/ws/field`.
+    ///
+    /// Returns `Some(event)` when an event was surfaced, `None` when the cycle
+    /// was held edge-local (above network policy — e.g. a `Derived → P4/P5`
+    /// cycle) or carried no presence. Two structural guarantees live here, so
+    /// they hold regardless of caller:
+    ///
+    /// - **no phantom events** — a no-presence cycle (`presence == false`)
+    ///   surfaces nothing (ADR-262 §4 P3 / §6); there is no person to describe.
+    /// - **privacy-safety pin** — above-policy classes (P0, P3–P5) are never
+    ///   placed on the network surface; only egress-safe P1/P2 events leave.
+    pub fn emit(&mut self, snap: &SensingSnapshot) -> Option<FieldEvent> {
+        // No-presence ⇒ no phantom event (fabricating one would be dishonest).
+        if !snap.classification.presence {
+            return None;
+        }
+
+        let event = snapshot_to_field_event(snap, &self.signer);
+
+        // §10 network egress gate (ADR-262 §4 P3): only P1/P2 leave the box by
+        // default; P0 raw and P3/P4/P5 (above the default P2 ceiling, or
+        // identity/biometric) are held edge-local. A `Derived` cycle is P4/P5
+        // ⇒ never surfaced as a low-privacy network event.
+        if !network_egress_allowed(event.observation.privacy_class, snap.identity_bound) {
+            tracing::trace!(
+                privacy_class = ?event.observation.privacy_class,
+                "ADR-262 P3: cycle held edge-local (above network policy), not surfaced on /api/field"
+            );
+            return None;
+        }
+
+        if self.recent.len() == FIELD_RING_CAPACITY {
+            self.recent.pop_front();
+        }
+        self.recent.push_back(event.clone());
+
+        if let Ok(json) = serde_json::to_string(&event) {
+            let _ = self.tx.send(json);
+        }
+        Some(event)
+    }
+}
+
+/// Parse [`SIGNING_SEED_ENV`] as 64-char hex or a raw 32+ byte UTF-8 value.
+fn parse_seed(v: &str) -> Option<[u8; 32]> {
+    let v = v.trim();
+    // 64 hex chars → 32 bytes.
+    if v.len() == 64 && v.bytes().all(|b| b.is_ascii_hexdigit()) {
+        let mut out = [0u8; 32];
+        for (i, chunk) in v.as_bytes().chunks(2).enumerate() {
+            let hi = (chunk[0] as char).to_digit(16)?;
+            let lo = (chunk[1] as char).to_digit(16)?;
+            out[i] = ((hi << 4) | lo) as u8;
+        }
+        return Some(out);
+    }
+    // Otherwise: first 32 bytes of the raw value (must be at least 32 long so a
+    // short/typo'd value fails closed to the dev key rather than a weak key).
+    let bytes = v.as_bytes();
+    if bytes.len() >= 32 {
+        let mut out = [0u8; 32];
+        out.copy_from_slice(&bytes[..32]);
+        return Some(out);
+    }
+    None
+}
+
+/// Build a [`SensingSnapshot`] from the real per-cycle values (ADR-262 P3 §4.2).
+///
+/// This is the join the ADR mandates: `SensingUpdate` features / classification
+/// / signal-field **plus** the governed engine's `effective_class` / `demoted`
+/// / `identity_bound` trust state. All inputs are the same real data the cycle
+/// already computed — nothing is fabricated. `signal_field` is passed through as
+/// the honest "strongest field peak" readout (no calibrated coordinates).
+#[allow(clippy::too_many_arguments)]
+#[must_use]
+pub fn build_snapshot(
+    timestamp_ns: u64,
+    node_id: String,
+    features: SensingFeatures,
+    classification: SensingClass,
+    signal_field: Option<SignalField>,
+    trust_class: RuViewPrivacyClass,
+    demoted: bool,
+    identity_bound: bool,
+) -> SensingSnapshot {
+    SensingSnapshot {
+        timestamp_ns,
+        features,
+        classification,
+        signal_field,
+        trust_class,
+        demoted,
+        identity_bound,
+        node_id,
+    }
+}
+
+/// Map RuView's live governed-engine `bfld::PrivacyClass` (the `effective_class`
+/// on `TrustedOutput`) onto the bridge's [`RuViewPrivacyClass`] input.
+///
+/// This is a **lossless, same-meaning** re-encoding of the four byte-level
+/// classes — both enums are `Raw/Derived/Anonymous/Restricted` in the same
+/// order. It exists only so `main.rs` can pass the engine's class into the
+/// bridge without the bridge depending on `wifi-densepose-bfld` (keeping it an
+/// anti-corruption layer, ADR-262 §5.4). The information-content privacy
+/// mapping (the §3.3 correctness item) happens *inside* the bridge.
+#[must_use]
+pub fn ruview_class_from_bfld(class: wifi_densepose_bfld::PrivacyClass) -> RuViewPrivacyClass {
+    use wifi_densepose_bfld::PrivacyClass as B;
+    match class {
+        B::Raw => RuViewPrivacyClass::Raw,
+        B::Derived => RuViewPrivacyClass::Derived,
+        B::Anonymous => RuViewPrivacyClass::Anonymous,
+        B::Restricted => RuViewPrivacyClass::Restricted,
+    }
+}
+
+// ── Handlers ────────────────────────────────────────────────────────────────
+
+/// Shared state for the field surface handlers. Generic over the lock guard so
+/// the module can be tested in isolation with a tiny state (ADR-262 P3 test
+/// gate) and wired into the full `AppStateInner` in `main.rs` via an adapter.
+pub type FieldState = Arc<RwLock<FieldSurface>>;
+
+/// `GET /api/field` — the most recent network-surfaced `FieldEvent`s as JSON,
+/// plus surface metadata (the signer pubkey + whether a dev key is in use).
+///
+/// When no event has been surfaced yet (empty room / above-policy cycles only)
+/// the `events` array is empty — an **explicit empty payload**, never a
+/// fabricated event (ADR-262 §4 P3 / §6 honesty).
+pub async fn api_field(State(state): State<FieldState>) -> Json<serde_json::Value> {
+    let s = state.read().await;
+    Json(serde_json::json!({
+        "spec": "rufield",
+        "endpoint": "/api/field",
+        "signer_pubkey_hex": s.signer_pubkey_hex(),
+        "dev_signing_key": s.using_dev_key(),
+        "events": s.recent(),
+    }))
+}
+
+/// `GET /ws/field` — upgrade to a WebSocket that streams each surfaced
+/// `FieldEvent` (JSON) as the sensing loop emits it. Mirrors `/ws/sensing`:
+/// subscribe to the broadcast topic and forward.
+pub async fn ws_field(ws: WebSocketUpgrade, State(state): State<FieldState>) -> impl IntoResponse {
+    let rx = {
+        let s = state.read().await;
+        s.subscribe()
+    };
+    ws.on_upgrade(move |socket| handle_ws_field_client(socket, rx))
+}
+
+async fn handle_ws_field_client(mut socket: WebSocket, mut rx: broadcast::Receiver<String>) {
+    // Forward broadcast events; exit on client close or fatal lag.
+    loop {
+        match rx.recv().await {
+            Ok(json) => {
+                if socket.send(Message::Text(json)).await.is_err() {
+                    break; // client gone
+                }
+            }
+            Err(broadcast::error::RecvError::Lagged(_)) => {
+                // Slow client missed events — keep going from the latest.
+                continue;
+            }
+            Err(broadcast::error::RecvError::Closed) => break,
+        }
+    }
+}
+
+/// Build the additive field-surface router. Mounted into the main HTTP router
+/// in `main.rs`; also used standalone by the integration tests (ADR-262 P3
+/// gate, `tower::oneshot`).
+#[must_use]
+pub fn router(state: FieldState) -> axum::Router {
+    use axum::routing::get;
+    axum::Router::new()
+        .route("/api/field", get(api_field))
+        .route("/ws/field", get(ws_field))
+        .with_state(state)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use wifi_densepose_rufield::{is_fusable, PrivacyClass};
+
+    fn features() -> SensingFeatures {
+        SensingFeatures {
+            mean_rssi: -55.0,
+            variance: 0.4,
+            motion_band_power: 2.0,
+            breathing_band_power: 0.3,
+            dominant_freq_hz: 0.25,
+            change_points: 1,
+            spectral_power: 3.0,
+        }
+    }
+
+    fn present_class() -> SensingClass {
+        SensingClass {
+            motion_level: "low".into(),
+            presence: true,
+            confidence: 0.82,
+        }
+    }
+
+    #[test]
+    fn parse_seed_hex_and_raw_and_short() {
+        // 64 hex chars → 32 bytes.
+        let hex = "00112233445566778899aabbccddeeff00112233445566778899aabbccddeeff";
+        let parsed = parse_seed(hex).expect("valid hex seed");
+        assert_eq!(parsed[0], 0x00);
+        assert_eq!(parsed[31], 0xff);
+        // Raw 32-byte value.
+        assert!(parse_seed("0123456789abcdef0123456789abcdef").is_some());
+        // Too short → fail closed (None → dev key).
+        assert!(parse_seed("short").is_none());
+    }
+
+    #[test]
+    fn anonymous_cycle_surfaces_fusable_event() {
+        let mut surface = FieldSurface::from_seed(DEV_SIGNING_SEED, true);
+        let snap = build_snapshot(
+            1_791_986_400_000_000_000,
+            "esp32_room_01".into(),
+            features(),
+            present_class(),
+            None,
+            RuViewPrivacyClass::Anonymous, // → P2, network-allowed
+            false,
+            false,
+        );
+        let ev = surface.emit(&snap).expect("anonymous P2 cycle is surfaced");
+        assert_eq!(ev.observation.privacy_class, PrivacyClass::P2);
+        assert!(is_fusable(&ev), "live event must be ed25519-signed & fusable");
+        assert_eq!(surface.recent().len(), 1);
+    }
+
+    #[test]
+    fn derived_cycle_never_surfaces_low_privacy() {
+        // The privacy-safety pin: a Derived (identity) cycle maps to P4/P5 and
+        // is held edge-local — it must NEVER appear on the network surface.
+        let mut surface = FieldSurface::from_seed(DEV_SIGNING_SEED, true);
+        for identity_bound in [false, true] {
+            let snap = build_snapshot(
+                1_791_986_400_000_000_000,
+                "esp32_room_01".into(),
+                features(),
+                present_class(),
+                None,
+                RuViewPrivacyClass::Derived,
+                false,
+                identity_bound,
+            );
+            assert!(
+                surface.emit(&snap).is_none(),
+                "Derived cycle (identity_bound={identity_bound}) must be held edge-local"
+            );
+        }
+        assert!(surface.recent().is_empty(), "no Derived event may reach the surface");
+    }
+
+    #[test]
+    fn ring_buffer_is_bounded() {
+        let mut surface = FieldSurface::from_seed(DEV_SIGNING_SEED, true);
+        for i in 0..(FIELD_RING_CAPACITY + 10) {
+            let snap = build_snapshot(
+                1_791_986_400_000_000_000 + i as u64,
+                "esp32_room_01".into(),
+                features(),
+                present_class(),
+                None,
+                RuViewPrivacyClass::Anonymous,
+                false,
+                false,
+            );
+            surface.emit(&snap);
+        }
+        assert_eq!(surface.recent().len(), FIELD_RING_CAPACITY);
+    }
+}
@@ -0,0 +1,178 @@
+//! ADR-262 **P3** acceptance gate — the live RuField surface.
+//!
+//! In-process integration test (mirrors the `/ws/sensing` / #1050 oneshot
+//! style with `tower::ServiceExt::oneshot`): drives synthetic sensing cycles
+//! through the real `FieldSurface` + the real `/api/field` router, and asserts:
+//!
+//! 1. an injected `Anonymous` (occupancy) cycle surfaces a **well-formed signed
+//!    `FieldEvent`** — `Modality::WifiCsi`, privacy class consistent with the
+//!    trust (P2, never P1), `is_fusable` (ed25519 receipt verifies), real
+//!    timestamp;
+//! 2. an empty / no-presence cycle produces **no phantom event** (explicit
+//!    empty payload);
+//! 3. the **privacy-safety pin** — an injected `Derived` (identity) trust state
+//!    never surfaces as a low-privacy event on `/api/field` (held edge-local).
+//!
+//! These gates are plumbing + privacy-safety, NOT accuracy (ADR-262 §0 / §6).
+
+use std::sync::Arc;
+
+use axum::body::Body;
+use axum::http::{Request, StatusCode};
+use tokio::sync::RwLock;
+use tower::ServiceExt; // `oneshot`
+
+use wifi_densepose_rufield::{is_fusable, verify_event, FieldEvent, Modality, PrivacyClass};
+use wifi_densepose_sensing_server::rufield_surface::{
+    self, FieldState, FieldSurface, RuViewPrivacyClass, SensingClass, SensingFeatures, SignalField,
+};
+
+/// A fixed dev seed for deterministic, signed events under test.
+const TEST_SEED: &[u8; 32] = b"adr262-p3-integration-test-seed!";
+
+fn features() -> SensingFeatures {
+    SensingFeatures {
+        mean_rssi: -55.0,
+        variance: 0.4,
+        motion_band_power: 2.0,
+        breathing_band_power: 0.3,
+        dominant_freq_hz: 0.25,
+        change_points: 1,
+        spectral_power: 3.0,
+    }
+}
+
+fn class(presence: bool) -> SensingClass {
+    SensingClass {
+        motion_level: if presence { "low".into() } else { "none".into() },
+        presence,
+        confidence: if presence { 0.82 } else { 0.05 },
+    }
+}
+
+/// A small 2×1×2 signal field with a clear peak, so the bridge derives a real
+/// (non-fabricated) position from the strongest cell.
+fn signal_field() -> SignalField {
+    SignalField {
+        grid_size: [2, 1, 2],
+        values: vec![0.1, 0.2, 0.9, 0.3], // peak at index 2
+    }
+}
+
+/// Build a `FieldState` + the real `/api/field` + `/ws/field` router over it.
+fn surface_router() -> (FieldState, axum::Router) {
+    let state: FieldState = Arc::new(RwLock::new(FieldSurface::from_seed(TEST_SEED, true)));
+    let app = rufield_surface::router(state.clone());
+    (state, app)
+}
+
+/// Drive one cycle into the surface (the in-process equivalent of the live
+/// sensing loop calling `emit()` per cycle).
+async fn inject(state: &FieldState, trust: RuViewPrivacyClass, presence: bool, identity_bound: bool) {
+    let snap = rufield_surface::build_snapshot(
+        1_791_986_400_000_000_000,
+        "esp32_node_7".into(),
+        features(),
+        class(presence),
+        Some(signal_field()),
+        trust,
+        false, // demoted
+        identity_bound,
+    );
+    state.write().await.emit(&snap);
+}
+
+/// `GET /api/field` and parse the `events` array.
+async fn get_field_events(app: &axum::Router) -> Vec<FieldEvent> {
+    let resp = app
+        .clone()
+        .oneshot(
+            Request::builder()
+                .uri("/api/field")
+                .body(Body::empty())
+                .unwrap(),
+        )
+        .await
+        .unwrap();
+    assert_eq!(resp.status(), StatusCode::OK, "/api/field must return 200");
+    let bytes = axum::body::to_bytes(resp.into_body(), usize::MAX).await.unwrap();
+    let v: serde_json::Value = serde_json::from_slice(&bytes).unwrap();
+    assert_eq!(v["spec"], "rufield");
+    serde_json::from_value(v["events"].clone()).expect("events array deserializes to FieldEvents")
+}
+
+#[tokio::test]
+async fn gate_anonymous_cycle_surfaces_wellformed_signed_event() {
+    let (state, app) = surface_router();
+    inject(&state, RuViewPrivacyClass::Anonymous, true, false).await;
+
+    let events = get_field_events(&app).await;
+    assert_eq!(events.len(), 1, "one occupancy cycle ⇒ exactly one surfaced event");
+    let ev = &events[0];
+
+    // Well-formed: WiFi-CSI modality, real timestamp.
+    assert_eq!(ev.tensor.modality, Modality::WifiCsi);
+    assert_eq!(ev.timestamp_ns, 1_791_986_400_000_000_000);
+    assert!(ev.timestamp_ns > 0, "real (non-zero) timestamp");
+
+    // Privacy consistent with the injected trust: Anonymous → P2, NEVER P1.
+    assert_eq!(ev.observation.privacy_class, PrivacyClass::P2);
+    assert_ne!(ev.observation.privacy_class, PrivacyClass::P1);
+
+    // Signed + fusable: the ed25519 receipt verifies (real, non-synthetic).
+    assert!(!ev.provenance.synthetic, "live event is non-synthetic");
+    assert!(verify_event(ev).is_ok(), "ed25519 signature must verify");
+    assert!(is_fusable(ev), "verified receipt ⇒ fusable");
+
+    // Real position derived from the signal-field peak (not fabricated).
+    assert!(ev.observation.range_m.is_some(), "field peak ⇒ a real range readout");
+}
+
+#[tokio::test]
+async fn gate_empty_cycle_produces_no_phantom_event() {
+    let (state, app) = surface_router();
+    // A no-presence cycle: nothing to describe.
+    inject(&state, RuViewPrivacyClass::Anonymous, false, false).await;
+
+    let events = get_field_events(&app).await;
+    assert!(
+        events.is_empty(),
+        "no-presence cycle must surface no phantom event (explicit empty payload)"
+    );
+}
+
+#[tokio::test]
+async fn gate_derived_trust_never_surfaces_low_privacy() {
+    // The privacy-safety pin (ADR-262 §3.3 / §6): a Derived (identity) trust
+    // state maps to P4/P5 and is held edge-local — it must NEVER appear on the
+    // network surface, and certainly never as a low-privacy (P1/P2) event.
+    for identity_bound in [false, true] {
+        let (state, app) = surface_router();
+        inject(&state, RuViewPrivacyClass::Derived, true, identity_bound).await;
+
+        let events = get_field_events(&app).await;
+        assert!(
+            events.is_empty(),
+            "Derived cycle (identity_bound={identity_bound}) must not surface on /api/field"
+        );
+    }
+}
+
+#[tokio::test]
+async fn gate_mixed_stream_surfaces_only_egress_safe_events() {
+    // Determinism / privacy-safety over a stream: Anonymous cycles surface,
+    // interleaved Derived cycles are dropped — the surface only ever carries
+    // egress-safe (P1/P2) events.
+    let (state, app) = surface_router();
+    inject(&state, RuViewPrivacyClass::Anonymous, true, false).await; // P2 → surfaced
+    inject(&state, RuViewPrivacyClass::Derived, true, false).await; // P4 → dropped
+    inject(&state, RuViewPrivacyClass::Anonymous, true, false).await; // P2 → surfaced
+    inject(&state, RuViewPrivacyClass::Derived, true, true).await; // P5 → dropped
+
+    let events = get_field_events(&app).await;
+    assert_eq!(events.len(), 2, "only the two Anonymous cycles surface");
+    for ev in &events {
+        assert_eq!(ev.observation.privacy_class, PrivacyClass::P2);
+        assert!(is_fusable(ev));
+    }
+}
Author	SHA1	Message	Date
dependabot[bot]	99cea0ed33	chore(deps): bump actions/checkout from 4 to 6 Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 6. - [Release notes](https://github.com/actions/checkout/releases) - [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md) - [Commits](https://github.com/actions/checkout/compare/v4...v6) --- updated-dependencies: - dependency-name: actions/checkout dependency-version: '6' dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com>	2026-06-14 17:58:17 +00:00
rUv	df617145d6	feat(ADR-262 P3): live /api/field + /ws/field — RuView sensing speaks RuField (fail-closed egress) (#1071 ) * feat(ADR-262 P3): live RuField surface — RuView sensing speaks RuField on /api/field + /ws/field Wire the P1 `wifi-densepose-rufield` bridge into the live `wifi-densepose-sensing-server` so the governed sensing cycle emits real signed RuField `FieldEvent`s on two additive endpoints. - Cargo: add the `wifi-densepose-rufield` path dep (the single coupling point, ADR-262 §5.4 — no new RuView-internal coupling). - New `src/rufield_surface.rs` (kept out of the 8k-line main.rs): `FieldSurface` holds a dedicated ed25519 `Signer` + a bounded ring of recent events + the `/ws/field` broadcast topic; `GET /api/field` and `GET /ws/field` handlers; a standalone `router()` for isolated testing. - Signer (defers the P2 key decision, ADR-262 §8 Q1): a STANDALONE dev/sensing key from `WDP_RUFIELD_SIGNING_SEED`, else a deterministic dev default with a logged WARN. Reusing the `cog-ha-matter` Ed25519 key is the deferred P2 call — P3 does not pre-empt it. - Tap: at the ESP32 governed-trust cycle (`main.rs` ~5886 observe_cycle / ~5938 SensingUpdate build), `emit_rufield_event` joins the cycle's features/classification/signal_field with the engine's effective_class/demoted trust state into a `SensingSnapshot` and surfaces it via the bridge. Existing endpoints (`/ws/sensing` etc.) are unchanged — purely additive. - Privacy egress: `network_egress_allowed` is fail-closed for an unattended live surface — only P1/P2 leave the box; P0 raw and P3/P4/P5 (identity/biometric/aggregate) are held edge-local. A `Derived` cycle maps to P4/P5 and never surfaces. - No-phantom: `emit` drops no-presence cycles (no fabricated events). Gates (tests/rufield_surface_test.rs, tower::oneshot, 4/0): well-formed signed event (WifiCsi, P2 not P1, is_fusable, real timestamp); empty cycle → no phantom; Derived trust never surfaces; mixed stream surfaces only egress-safe events. Honesty (ADR-262 §0/§6): real plumbing on a live endpoint, NOT accuracy. Single-link CSI with its existing caveats (no validated room-coordinate accuracy); dedicated dev signing key pending the P2 ownership decision; no accuracy claim. Co-Authored-By: claude-flow <ruv@ruv.net> * docs(ADR-262 P3): mark P1+P3 implemented; document /api/field + /ws/field; CHANGELOG - ADR-262 Status → "P1 + P3 implemented"; add a P3 implementation-status block (tap site, endpoints, dedicated dev signer deferring the §8 Q1 key decision, fail-closed egress, gates). Keep the honesty framing: real plumbing on a live endpoint, not accuracy. - CHANGELOG [Unreleased]: add the ADR-262 P3 entry. - user-guide: add `/api/field` to the REST table + a "RuField surface (ADR-262 P3)" section covering `/api/field` + `/ws/field`, the fail-closed P1/P2-only egress, the WDP_RUFIELD_SIGNING_SEED dev key, and the no-accuracy honesty note. Co-Authored-By: claude-flow <ruv@ruv.net> * ci: checkout submodules everywhere + Dockerfile copies vendor/rufield Making wifi-densepose-rufield (ADR-262 bridge) a v2 workspace member means EVERY cargo-on-workspace context must have the vendor/rufield submodule present (cargo loads all member manifests). P1 only fixed the rust-tests job; this adds `submodules: recursive` to all workflow checkouts that run cargo (mqtt-integration was failing on the missing submodule manifest), and makes Dockerfile.rust COPY vendor/rufield/ to /vendor/rufield (matches the bridge's ../../../vendor/rufield path-dep under the collapsed Docker layout). update-submodules.yml left alone (it manages submodules itself). Co-Authored-By: claude-flow <ruv@ruv.net> --------- Co-authored-by: ruv <ruvnet@gmail.com>	2026-06-14 13:55:41 -04:00
rUv	f250149e94	feat(ADR-262 P1): wifi-densepose-rufield bridge — RuView sensing → signed RuField FieldEvents (fail-closed privacy map) (#1070 ) * feat(rufield): ADR-262 P1 — wifi-densepose-rufield anti-corruption bridge New v2 workspace member that converts RuView WiFi-CSI sensing output into signed RuField FieldEvents. Path-deps the vendor/rufield submodule crates (rufield-core/-provenance/-privacy/-fusion); single coupling point between RuView and the standalone RuField MFS spec (ADR-262 §5.4). - SensingSnapshot: owned primitives mirroring SensingUpdate + TrustedOutput (no dependency on wifi-densepose-sensing-server). - snapshot_to_field_event(): builds a WifiCsi FieldTensor + Observation, derives a real position from the signal-field peak (never fabricated), real sha256 provenance + ed25519 signature (synthetic=false). - map_privacy() (§3.3 crux): maps by information content, NEVER byte value — Derived (byte 1) → P4/P5, never P1; fail-closed demotion floor to P2. P1 gates (tests/p1_gates.rs): round-trip serde, is_fusable verified receipt, RuFieldFusion::ingest accept + infer runs, privacy-safety (Derived never P1), full §3.3 table, fail-closed demotion, determinism, no-fabricated-position. 15 tests pass (5 unit + 9 integration + 1 doc), 0 failed. Honesty: P1 plumbing (tested conversion + safe privacy mapping), NOT wired into the live server (P3) and NOT an accuracy claim. Co-Authored-By: claude-flow <ruv@ruv.net> * docs(adr-262): mark P1 implemented + CI submodules:recursive + CHANGELOG/CLAUDE - ADR-262 Status → "Proposed — P1 implemented"; add §0.1 Implementation status (the bridge crate + the five P1 gates that pass; defers the provenance-carrier reuse, P3 live wiring, and P4 multi-modality). - ci.yml: add `submodules: recursive` to the rust-tests checkout so the new crate's `vendor/rufield` path-deps resolve in CI (they fail otherwise even though the workspace build passes locally with the submodule present). - CHANGELOG [Unreleased]: P1 bridge entry (kept alongside the upstream ADR-262 research entry). - CLAUDE.md: crate table row for `wifi-densepose-rufield`. Co-Authored-By: claude-flow <ruv@ruv.net>	2026-06-14 12:46:58 -04:00
rUv	faca0530de	docs(adr-262): RuField↔RuView integration design (Proposed) (#1069 ) Researched integration ADR: thin wifi-densepose-rufield bridge crate (rvcsi pattern), live SensingServerAdapter emitting signed FieldEvents, vertical fusion composition (ruvsense within-WiFi → rufield cross-modal), and ONE canonical privacy/provenance model (RuView effective_class → RuField P0-P5 at egress; reuse cog-ha-matter SHA-256+Ed25519 receipt). Key finding: RuView has 2 privacy enums + 3 witness mechanisms; the Derived(byte=1)<Anonymous(byte=2)-but-carries-identity trap means the bridge must map by information content, not byte value. Plumbing architecture, not accuracy (real-CSI is unlabeled replay today). Co-authored-by: ruv <ruvnet@gmail.com>	2026-06-14 12:03:16 -04:00