chore(api): bundle canon log schemas into image; repo-root build context

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

docker-compose.yml

@@ -1,17 +1,21 @@
 # Local dev — run the proxy in Docker with live reload.
 #   docker compose up --build
+# Build context is the repo root so docs/schemas is available to the image.
 # Ollama runs on the homelab (charter §4), not here — point OLLAMA_BASE_URL at it.
 services:
   api:
-    build: ./api
+    build:
+      context: .
+      dockerfile: api/Dockerfile
     ports:
       - "8000:8000"
     env_file:
       - ./api/.env
     environment:
       PORT: 8000
-    # Mount source + reload so edits are live without a rebuild.
+    # Mount source + schemas so edits are live without a rebuild.
     volumes:
       - ./api/app:/app/app:ro
+      - ./docs/schemas:/app/schemas:ro
     command: >
       uvicorn app.main:app --host 0.0.0.0 --port 8000 --reload