fix: chunk size limit + keep MP3s + Respond Accepted fix; add rocinante stack

- Chunk Text: word-level fallback for sentences > 600 chars
- watch.py: keep MP3 after transcription
- Respond Accepted: remove cross-node reference
- rocinante/: Whisper CUDA + watcher stack for RTX 4090 transcription

rocinante/docker-compose.yaml

@@ -0,0 +1,40 @@
+name: rocinante
+
+services:
+
+  whisper:
+    image: fedirz/faster-whisper-server:latest-cuda
+    container_name: rocinante-whisper
+    restart: unless-stopped
+    ports:
+      - "8787:8000"
+    environment:
+      WHISPER__MODEL: large-v3
+      WHISPER__INFERENCE_DEVICE: cuda
+      TZ: ${TZ}
+    deploy:
+      resources:
+        reservations:
+          devices:
+            - driver: nvidia
+              count: 1
+              capabilities: [gpu]
+    volumes:
+      - whisper-cache:/root/.cache/huggingface
+
+  watcher:
+    build: ./watcher
+    container_name: rocinante-watcher
+    restart: unless-stopped
+    environment:
+      WHISPER_URL: http://whisper:8000
+      N8N_WEBHOOK_URL: ${N8N_WEBHOOK_URL}
+      WATCH_DIR: /recordings
+      TZ: ${TZ}
+    volumes:
+      - C:/Recordings:/recordings
+    depends_on:
+      - whisper
+
+volumes:
+  whisper-cache: