feat(observatory): cache sealed camera and TGS replay on Core

src/k1link/web/app.py

@@ -54,6 +54,7 @@ from k1link.observatory.portable_queue_binding import (
     PortableQueueBindingError,
     PortableRecordedQueueBindingService,
 )
+from k1link.observatory.portable_replay import PortableReplayService
 from k1link.observatory.portable_result_cache import PortableResultCache
 from k1link.observatory.portable_result_contract import (
     PortableCalculationProfileRegistry,
@@ -212,6 +213,7 @@ from k1link.web.plugin_runtime import (
     PluginRuntimeUnavailableError,
 )
 from k1link.web.polygon_api import build_polygon_router, configured_polygon_runs_root
+from k1link.web.portable_replay_api import build_portable_replay_router
 from k1link.web.runtime_diagnostics import configure_scanner_diagnostics
 from k1link.web.runtime_readiness import (
     BackgroundReconcilerReadiness,
@@ -1053,6 +1055,21 @@ async def device_plugin_events(websocket: WebSocket, plugin_id: str) -> None:
         await websocket.close(code=1011, reason="Device plugin state stream failed")
 
 
+if session_artifact_gateway is not None and _ffmpeg is not None:
+    app.include_router(
+        build_portable_replay_router(
+            PortableReplayService(
+                view=PortableResultViewService(
+                    sessions=session_store, artifacts=session_artifact_gateway.store
+                ),
+                data_dir=session_store.data_dir,
+                media=session_recorded_media_inspector,
+                recording_source=_canonical_lab_recording_source,
+                ffmpeg_path=_ffmpeg,
+            )
+        )
+    )
+
 for legacy_router in plugin_environment.legacy_routers:
     app.include_router(legacy_router)