v0.13.0:4 - redaction gateway, embeddings proxy, expanded audio API

- Add redaction gateway (redaction_gateway.py, redaction/ scrub + tests)
- Add embeddings proxy and spark_embed service (Dockerfile + main.py)
- Expand audio_proxy with speaker-aware handling; deep_health/health/server updates
- Package: configureSparks action + sparkConfig model updates, manifest/main wiring
- Docs: AUDIO_API, EMBEDDINGS, REDACTION_GATEWAY; HANDOFF and runbook/known-issues refresh

image/app/connectivity.py

@@ -4,7 +4,7 @@ Persisted to /data/connectivity.json. Schema:
 
     {
       "macs": { "spark1": "aa:bb:..", "spark2": "11:22:.." },
-      "current": { "spark1": "up", "parakeet": "up", "magpie": "down", ... },
+      "current": { "spark1": "up", "parakeet": "up", "kokoro": "up", ... },
       "last_change": { ... },
       "events": [
         # Active-probe transition (logged when state flips during polling)
@@ -87,7 +87,7 @@ def record_state(subject: str, reachable: bool) -> Optional[dict]:
     was recorded, else None.
 
     `subject` can be a Spark host key (spark1/spark2) or a service name
-    (parakeet/magpie/vllm).
+    (parakeet/kokoro/vllm).
     """
     new_state = "up" if reachable else "down"
     now = datetime.now(timezone.utc).isoformat().replace("+00:00", "Z")