docs(perception): record m4 detector acceptance

docs/22_MILESTONE_4_OBJECT_CENTRIC_RECORDED_REALTIME_CV.md

@@ -2,7 +2,7 @@
 
 Date: 2026-08-05
 
-Status: in progress; M4.0–M4.2 implemented, M4.3 local shadow artifact ready/runtime gate open
+Status: in progress; M4.0–M4.3 accepted, M4.4 geometry/range is next
 
 Audit base: `1b3e0b3` on `feat/simulation-polygon-s1`
 
@@ -750,6 +750,50 @@ removed after success or failure. Durable E15 and Triton are re-verified after
 the run. This is a Mission Core operator workflow, not a cross-repository deploy
 workflow.
 
+### 2026-08-05 — M4.3 Worker 006 runtime acceptance
+
+The first self-contained execution exposed a real package-boundary defect before
+frame zero: importing `k1link.perception` eagerly imported legacy
+`k1link.compute`, which then initialized annotation, device and MQTT modules.
+Adding the missing MQTT dependency to the container was rejected as a runtime
+workaround. Instead, the product package initializer was made side-effect free
+and the frozen YOLOX primitive moved from `k1link.compute` to product-owned
+`k1link.perception.yolox_object_detector`. Architecture tests now fail if the
+detector runtime closure imports legacy compute. The complete repository suite
+after that correction is `1236 passed, 1 skipped`; scoped Ruff and strict mypy
+are clean.
+
+Accepted local artifact:
+
+- patch: `mission-core-m4-detector-shadow-20260805-006`;
+- code revision: `8bd632509e01fcd0a22b3986cb044cba3248ab2e`;
+- artifact SHA-256:
+  `2c9d62cb3d1949bcfd0576e95192aac100c8c145d894ebad3f3a40ff3512e4eb`;
+- wheel SHA-256:
+  `4158784fd40b70c7213b629ed39d664fd2f12eab1c9242ec9a6ebbb366e3dd5a`.
+
+Immutable Worker 006 result:
+
+- result ID:
+  `m4-detector-replay-11f83f2e0b81758ac2a5a5fc54e9d293b501678df5f6ef97b5c6069ba08605c5`;
+- `4,489 / 4,489` completed, `0` failed, `0` rejected;
+- `15,499` proposals and `181` zero-proposal frames;
+- end-to-end `24.880292 FPS`, provider core `32.60469 FPS`;
+- frame latency p50 `29.943714 ms`, p95 `40.417794 ms`, max `323.939743 ms`;
+- provider tracklets `0`; semantic labels remain diagnostic metadata only;
+- receipt SHA-256:
+  `81280380ada97548e4991f33727c2cb279b824646024c07ec21e96505d002038`;
+- frame ledger SHA-256:
+  `9bf5ae17938cd57c112278781b38d54a7187cf2dabc7bb0332acdb1efad721f5`.
+
+The result passes `require_m4_detector_replay_acceptance`. The candidate
+container was removed. Durable E15
+`db2024d05098a6beb6b73bbf43f02c88ede586a4664b2c91182f436a42b3e3ff`
+and healthy Triton
+`4232fb040062a8384809e73612baa92b343ddcb60f00c23e7091eb4909959223`
+retained their exact identities; no public port, cutover or Platform dependency
+was introduced. M4.3 is closed and M4.4 geometry/range may start.
+
 ## Implementation order
 
 The implementation sequence is intentionally strict: