feat(ruview-gamma): generalize to adaptive sensory neuromodulation platform

40 Hz becomes one prior in one program, not the product. The engine is a
personal neural-rhythm optimization platform: RuView is the feedback signal,
RuVector the personal response map, the device the actuator, RuFlo the
governed/auditable loop (ADR-250 section 23).

New "program" module: NeuroProgram catalog of 7 use cases (Alzheimer's
research, post-stroke cognition, sleep optimization, attention/working-memory,
mood/arousal, home wellness, drug+device trial infrastructure), each with its
own SafetyEnvelope, prior, ObjectiveWeights, physiological-state gating
(sleep permits Asleep + near-dark brightness cap; attention requires
wakefulness), EvidenceLevel, and a single non-disease claim.

New "acceptance" module: makes "measurable entrainment, safety, adherence,
repeatability before any disease claim" executable. AcceptanceHarness grades
a program over >=3 repeats; ClaimGate releases the program's claim ONLY when
all four pass, else the research-only NO_CLAIM string. The marketing claim is
unreadable except through the gate.

Governor: enroll_program (per-program envelope/objective), program(), prior(),
state_eligible(). The bare enroll() path is unchanged, so the pinned witness
13cb164c... is preserved.

88 crate tests + 1 doctest; workspace gate 2,889 passed / 0 failed. Benches:
program grading ~425us; hot paths unchanged (recommend ~15us, calibration
~115us, kNN/500 ~15us).

https://claude.ai/code/session_01MjBucx95K4BuUxZi8NWwRH

CLAUDE.md

@@ -22,7 +22,7 @@ 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. |
 | `ruview-swarm` | Drone swarm control system (ADR-148) — hierarchical-mesh topology, Raft consensus, MARL, CSI sensing payload, MAVLink/PX4 compat, Ruflo AI-agent integration |
-| `ruview-gamma` | Adaptive Gamma Entrainment (ADR-250) — governed, deterministic, safety-constrained personalization of 40 Hz-prior light+sound stimulation (RuView sensing + RuVector response modeling + RuFlo audit). Standalone leaf, ChaCha20 + SHA-256 witness. Research platform, not a medical device. |
+| `ruview-gamma` | Adaptive Sensory Neuromodulation platform (ADR-250) — governed, deterministic, safety-constrained personal neural-rhythm optimization. 7-program `NeuroProgram` catalog (Alzheimer's research, post-stroke cognition, sleep, attention/WM, mood/arousal, home wellness, trial infrastructure), each with its own safety envelope/prior/objective/state-gating/evidence-level/gated-claim. RuView sensing + RuVector cross-person self-learning (cohort warm-start, drift, clustering) + RuFlo audit. Executable acceptance gate (entrainment/safety/adherence/repeatability) releases a claim only when passed. Standalone leaf, ChaCha20 + SHA-256 witness. Research platform, not a medical device. |
 
 ### RuvSense Modules (`signal/src/ruvsense/`)
 | Module | Purpose |