docs(perception): record external worker acceptance

docs/01_IMPLEMENTATION_PLAN.md

@@ -298,6 +298,37 @@ confirms it.
 MVP GO: K1-to-Mac scan-correlated data can be captured reliably and at least one
 useful stream is decoded or structurally identified.
 
+## Stage 8 — replaceable external perception worker
+
+Stages 6–7 established the raw-first live bridge and durable combined session
+archive described above. Stage 8 introduces a replaceable GPU executor without
+giving it K1 command authority or the authoritative archive.
+
+Accepted recorded gate, 2026-07-19:
+
+- the Mac validates one sealed camera epoch through the same digest and
+  ISO-BMFF timing inspector used by saved-session replay;
+- `k1link compute prepare-camera-job` publishes an immutable
+  `missioncore.compute-job/v1` below ignored runtime storage;
+- the first TEST007 job contains only one bounded 56-frame camera epoch, not the
+  MQTT archive or another K1 control path;
+- Windows revalidates all 59 job files, reconstructs the exact canonical stream
+  digest and decodes all 56 frames;
+- pinned Apache-2.0 YOLOX-S executes through pinned Triton 2.70.0 on the RTX
+  4090 and atomically publishes one content-addressed
+  `missioncore.compute-result/v1`;
+- repeating the exact result identity returns the existing result without
+  increasing Triton inference count.
+
+The accepted result is perception evidence only. Rerun projection, the larger
+TEST007 epoch, direct/routed worker transport and bounded live fan-out remain
+separate gates. SSH/SCP is allowed only as the recorded laboratory bootstrap.
+The worker never connects to K1.
+
+See [ADR 0014](adr/0014-bounded-external-perception-worker.md), the
+[worker contract](10_EXTERNAL_PERCEPTION_WORKER.md) and
+[Lab 005](lab/005_FIRST_RECORDED_PERCEPTION_20260719.redacted.md).
+
 ## Deferred work
 
 - ROS2/MCAP bridge;