Merge branch 'main' of http://182.92.86.220:8300/wx44wx/icassp2027-experiment

PROJECT_CONTEXT.md

@@ -147,7 +147,16 @@ result.
   described as upstream Stage-3 code because that entry point remains
   unpublished. See the
   [`runbook`](docs/easycom_muvap_stage3_baseline.md).
-- `egospeak-omni-zero-residual` is implemented but unmeasured. It strictly
+- `egospeak-omni-zero-residual` has a user-reported seed-0 screen. Causal-valid
+  dense mean mAP increases from `61.193` to `62.714`; raw onset/offset mean
+  AP increases from `24.491/38.024` to `25.091/40.604`. Offset improves at all
+  ten horizons; onset gains are modest. Actual checkpoint provenance and
+  counts were not supplied for independent verification. Opportunity-based
+  semantic evaluation is temporarily paused because the user suspects
+  provisional annotation issues; historical metrics remain archived and P0
+  remains unfinished. See the
+  [`result record`](results/easycom_egospeak_omni_residual_2026-09-16/README.md).
+  The implementation strictly
   loads and freezes the released MiniROADA A+V/GRU/anticipation path, reuses
   existing causal 5 Hz Omni readouts, adds an explicit ten-bin partial-tail
   phase embedding, and learns only a zero-output residual over the original
@@ -157,6 +166,19 @@ result.
   states remains a future extraction ablation. See the
   [`runbook`](docs/easycom_egospeak_omni_residual.md).
 
+### Unmeasured dual-stream continuation
+
+Stage-two `egospeak-omni-selective-finetune` is implemented but unmeasured.
+It strictly continues the trained stage-one checkpoint, selectively adapts
+MiniROADA's GRU/forecast heads with a lower learning rate, and leaves original
+feature extractors, input projection and Omni frozen. It exports immutable
+stage-one/original references and automatic threshold-free raw endpoint AP.
+The user requested this exploratory continuation while semantic annotations
+are audited; P0 remains unfinished. Four additional epochs means eight total
+adaptation epochs, requiring the fusion-only continuation control for a
+budget-matched unfreezing comparison. See the
+[`stage-two runbook`](docs/easycom_egospeak_omni_finetune.md).
+
 ### Measured oracle-information screen
 
 - A seed-0, four-epoch Session-12 development screen supplied transcript-derived