Complete post-RC federation roadmap

docs/POST_RC_DATA_COVERAGE_ROADMAP_BELGIUM_NORTH_SEA.md

@@ -228,7 +228,7 @@ capabilities probe before implementation is marked operational.
 
 ## P5 - Federation, UX and release evidence
 
-**State: in progress.**
+**State: complete; live federation, responsive map UX and release evidence proven.**
 
 ### Work
 
@@ -256,3 +256,32 @@ capabilities probe before implementation is marked operational.
 - No unavailable theme is presented as measured data.
 - The live browser can select an area, acquire/reuse data, analyse it, inspect
   provenance and export it without entering a technical project workflow.
+
+### Live evidence
+
+- Immutable AI image `301ecaccbd160fbe58daa245ba229270b6f16e09-ai`
+  passed live PostGIS migration and browser proxy smoke before the final
+  documentation-only closeout commit.
+- The release journey reused all seven deterministic golden Areas and passed
+  Brussels, Wallonia, language-boundary, coast, Mol, Kempen and North Sea
+  coverage without creating duplicates.
+- National population resolves from the persisted reviewed Statbel 2025
+  edition; selection-bounded PICC and UrbIS results remain separate governed
+  regional datasets.
+- The live map now keeps persisted sources ahead of on-demand placeholders,
+  gives the selected Area camera priority and bounds the responsive MapLibre
+  canvas to its visible grid row. Belgium, Brussels, Wallonia and the North Sea
+  switched without manual zoom, horizontal overflow or console warnings.
+- The evidence manifest retained exact area geometry hashes, coverage states,
+  temporal forest metrics, a 49-feature persisted export, a grounded Ollama
+  answer and a configured local-YOLO Job/AnalysisRun with map handoff.
+- PyTorch `2.13.0+cpu` and Ultralytics `8.4.99` import in the deployed AI
+  runtime. No model download or fabricated detection was used.
+- The final repository gate passed 1,042 backend tests, 20 frontend tests,
+  frontend typecheck/build, one Alembic head, the full offline migration SQL
+  chain and live-smoke syntax.
+- MDK bathymetry remains `not_configured` because strict hostname validation
+  still fails. Marine planning/reporting remains operational and no depth or
+  water-volume value is fabricated.
+- Rectangle-based golden scopes that cross an irregular legal boundary retain
+  the truthful `outside_supported_scope` warning for the uncovered corners.