feat(sensing-server): introspection module skeleton (ADR-099 D1+D7+D8)
Adds the per-frame introspection state that ADR-099 specifies, plus the two
midstream dependencies. Pure addition — no other code touched.
v2/crates/wifi-densepose-sensing-server/Cargo.toml
+ midstreamer-temporal-compare = "0.2"
+ midstreamer-attractor = "0.2"
v2/crates/wifi-densepose-sensing-server/src/introspection.rs (new, 530 lines)
pub struct IntrospectionState
├─ midstreamer-attractor's AttractorAnalyzer (regime + Lyapunov)
├─ SignatureLibrary (JSON-loaded labelled segments)
├─ VecDeque<f64> sliding amplitude buffer (default 128 points)
└─ update(timestamp_ns, derived_feature) — never window-blocked
+ snapshot() -> IntrospectionSnapshot
{ timestamp_ns, frame_count, regime, lyapunov_exponent,
attractor_dim, attractor_confidence, top_k_similarity }
pub enum Regime { Idle, Periodic, Transient, Chaotic, Unknown }
pub struct Signature { id, label, vectors, dtw, promotion_threshold }
pub struct SimilarityMatch { signature_id, score, above_threshold }
DTW path is currently a host-side stand-in (length-normalised L1 with the
real DTW call deferred to I3/I5 once vec128 embeddings exist — ADR-099 P1).
The attractor path is wired to midstream directly. The analyze() step only
runs every N frames (default 8) to stay under the per-frame ms budget.
8 unit tests (snapshot defaults, frame-count + timestamp advance, empty
library, scoring + ordering invariants, threshold gating, empty-signature
fault-tolerance, regime classification after 200 frames). 199 → 207 lib tests,
0 failures. cargo build clean (only pre-existing warnings).
Co-Authored-By: claude-flow <ruv@ruv.net>
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