Record Aquarium native binding

docs/implementation-plan.md

@@ -114,6 +114,9 @@ shape removes independent per-kind storage from the live foundation.
    diagnostic JSON render-frame adapters, diagnostic JSON LOD adapters, and
    Python reservoir-window clipping.
 2. Bind Aquarium/Faust to the rolling-buffer `LocalcastRuntime`.
+   Aquarium now has a safe-code native reservoir binding layer; the next cut is
+   switching `LocalCastRuntime` from file polling to that injected native
+   runtime seam.
 3. Move camera/mic/loopback ingest into native capture workers that use
    `LocalcastProducer` to append typed sample handles.
 4. Move feature extraction, flow, cross-view matching, LOD reconciliation,

notes/fresh-workspace-handoff.md

@@ -33,6 +33,9 @@ Get-Content .\state\evidence.jsonl -Tail 8
 - `LocalcastRuntime` now exposes producer pushes and consumer reads.
   `LocalcastProducer` owns source identity and sequence assignment for native
   capture workers.
+- Aquarium-Engine commit `4d5aec7` adds the first safe-code C# binding layer for
+  this native ABI. It is not yet wired into `LocalCastRuntime` as the live
+  source.
 - Edge JSON is schema/diagnostic only. Runtime network/process data should remain typed CultNet documents.
 - Python live producers and diagnostic CultCache/JSON file adapters are
   diagnostics, not production foundations. The OpenGL Spout sink has been

state/evidence.jsonl

@@ -67,3 +67,4 @@
 {"ts": "2026-05-19T10:48:00+01:00", "type": "implementation", "status": "ok", "note": "Removed the Python visual producer from the scripts command surface by moving it to localcast.diagnostics.visual_producer and updating tests/docs to import it as diagnostic code. It remains a fossil to delete after native/Aquarium equivalents own the behavior."}
 {"ts": "2026-05-19T11:02:00+01:00", "type": "implementation", "status": "ok", "note": "LocalcastRuntime now exposes total and typed-view window reads through the C ABI: len, view_len, sample_at, view_sample_at, and latest_for_sensor. Aquarium/Faust consumers can walk the same rolling buffer that native producers append to instead of building private caches."}
 {"ts": "2026-05-19T11:20:00+01:00", "type": "implementation", "status": "ok", "note": "Added LocalcastProducer to the native ABI. Producers own sample kind, source hash, and sequence assignment, create live flags==0 handles, and append into LocalcastRuntime so hardware adapters do not manufacture reservoir metadata by hand."}
+{"ts": "2026-05-19T11:40:00+01:00", "type": "implementation", "status": "ok", "note": "Aquarium-Engine now has a safe-code LocalCast native reservoir binding layer committed as 4d5aec7. It mirrors LocalcastSampleKind, LocalcastSampleHandle, LocalcastRuntimeStatus, and exposes mockable runtime/producer interfaces plus DllImport wrappers; Aquarium.LocalCast.Tests passed 10 tests."}