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cog-ha-matter (ADR-116 P3): wire publisher::spawn into main.rs

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P3 closes the publisher wiring loop. `main.rs` now:

  1. builds `PublisherInputs` from CLI args via the pure helper
     extracted last iter,
  2. opens a `broadcast::channel::<VitalsSnapshot>(256)`,
  3. calls `runtime::spawn_publisher(inputs, rx)` — a thin
     wrapper around ADR-115's `publisher::spawn` that owns the
     `Arc<MqttConfig>` wrap,
  4. holds the tx side so the channel stays open until P3.5
     wires the sensing-server bridge,
  5. awaits Ctrl-C or unexpected publisher exit (logged at WARN).

Two new tests:
  * `spawn_publisher_returns_live_handle_without_broker` — proves
    the wiring compiles and the rumqttc event loop survives an
    unreachable broker (it retries internally; we abort the handle
    inside 100 ms). Catches breakage from a future refactor that
    accidentally pre-validates host reachability.
  * `default_state_channel_capacity_is_reasonable` — locks the
    `DEFAULT_STATE_CHANNEL_CAPACITY = 256` default; a regression to
    e.g. 1 would surface here instead of as a dropped frame in
    production under bursty multi-Seed federation.

12/12 cog-ha-matter tests green (10 → 12).

ADR-116 phase table: P3 flipped from "in progress" to ✅ wiring done,
with the P3.5 follow-up (sensing-server `/v1/snapshot` WS bridge)
explicitly named.

Co-Authored-By: claude-flow <ruv@ruv.net>
This commit is contained in:
ruv
2026-05-23 17:59:02 -04:00
parent 5723f505b7
commit c9f005c360
3 changed files with 97 additions and 6 deletions
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docs/adr/ADR-116-cog-ha-matter-seed.md
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@@ -94,7 +94,7 @@ Ranked by build cost × user impact:
|---|---|---|
| **P1** | Research dossier ([`docs/research/ADR-116-ha-matter-cog-research.md`](../research/ADR-116-ha-matter-cog-research.md)) | ✅ **done** — 8 sections, 30+ citations, v1 scope ranked |
| **P2** | Cog crate scaffold (`v2/crates/cog-ha-matter/`) — Cargo.toml + `src/{lib,main,manifest}.rs`, workspace member, CLI args, `--print-manifest` flag, 2 manifest unit tests | ✅ **done** — `cargo check` + `cargo test` green |
| **P3** | Wrap existing ADR-115 MQTT publisher as cog entry point | in progress — `runtime::build_publisher_inputs` extracted (pure helper, 8 unit tests) converts cog CLI → `MqttConfig + OwnedDiscoveryBuilder`. Next: `tokio::spawn(publisher::run(...))` in `main.rs` |
| **P3** | Wrap existing ADR-115 MQTT publisher as cog entry point | ✅ **wiring done** — `main.rs` boots ADR-115's `publisher::spawn` via `runtime::spawn_publisher` thin wrapper, holds a long-lived `broadcast::Sender<VitalsSnapshot>`, awaits Ctrl-C. Live-handle test green without a broker. Next (P3.5): subscribe to sensing-server `/v1/snapshot` WS and republish into the channel. |
| **P4** | Seed-native enhancements (embedded broker, mDNS, witness) | pending |
| **P5** | RuVector-backed threshold learning (SONA adaptation) | pending |
| **P6** | Multi-Seed federation (cross-Seed dedup + witness) | pending |