docs(mission): record accepted M4.8R3 shadow

docs/22_MILESTONE_4_OBJECT_CENTRIC_RECORDED_REALTIME_CV.md

@@ -1504,6 +1504,42 @@ anchors onto its immutable timeline; no third perception instrument exists.
 Navigation, commands, actuation, physical clearance and collision-safety
 authority remain false.
 
+### 2026-08-26 — M4.8R3 bounded static-occupancy Worker shadow accepted
+
+M4.8R3 closes the bounded Worker integration requested by M4.8R2. The sealed
+result is
+`m48r3-static-occupancy-shadow-d1577870b098bcd0b67cc51798234f224b348ad3954ead72f3ce6df414875a29`.
+It composes the accepted camera/geometry graph with an occupied-only low-step
+provider; RF-DETR, the native `800×600` fisheye raster and the semantic risk
+policy remain unchanged. Weak two-to-four-point geometry is published only
+when the exact `0.45 m` voxel is present in all six causal frames and its
+current range is at most `8 m`. Strong five-point components remain immediate.
+The provider never uses a semantic class, clears a cell, infers free space or
+runs another neural-network pass.
+
+The isolated Worker 006 replay delivered all `4,489/4,489` frames at
+`11.79902 FPS`. World-state completion p95 was `56.74324 ms`; geometry p95/p99
+were `8.420913/13.732692 ms`; GPU utilization p95/maximum were `54%/58%` and
+maximum used GPU memory was `9,743 MiB`. The additive provider contributed a
+mean `0.587893 ms` per frame. Relative to the frozen native baseline, FPS
+regression was `0.3745552%` and world-state p95 increased by `8.802461 ms`,
+both inside the predeclared envelope.
+
+All `9/9` critical-near assisted anchors are occupied in the delivered graph.
+At display frame `1856`, the two thin posts remain independent (`5` observed
+components in their review extent) and the two concrete hemispheres remain
+independent (`6` observed components); the system does not inherit the
+operator's old paired boxes. The ledger adds `613,146` occupied cells, loses
+zero baseline cells, makes zero false-free claims and records zero capacity
+drops. The two `8–12 m` approach anchors intentionally remain unknown because
+the sparse-persistence policy is bounded to the critical `0–8 m` band.
+
+This accepts the reproducible bounded Worker shadow and its LAB evidence, not a
+production navigation cutover. The result remains replay-simulated;
+physical-live authority, commands, actuation, planner-authoritative free space
+and collision-safety acceptance are false. The next milestone boundary is
+M4.9 recorded-realtime release-candidate validation using this frozen graph.
+
 ## Implementation order
 
 The implementation sequence is intentionally strict: