Reorganize Blender Web execution around capabilities

docs/status/C6-003.md

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+# C6-003 Status
+
+status: in_progress
+task: reactivate_queue
+gate: G5
+updated: 2026-08-23 America/New_York
+
+The queue reactivation dry-run is complete and deterministic. It records the
+legacy queue and parent hashes, three unique capability mappings, retained
+negative evidence, expected additive candidates, and rollback path. The dry-run
+and write preview bytes match exactly, and the explicit owner review approved
+the protected write.
+
+The queue write completed atomically with exit code 0. `M16-GAP-00276` is now
+`done`, the completion registry/plan/catalog/index were regenerated, and the
+legacy queue points to `M16-GAP-00277` with parent manifest
+`tests/golden/M16-GAP-00276/manifest.json`. The before/after bytes and rollback
+receipt are recorded in `tests/golden/corrective/C6-003/`.