feat: knowledge-base memory, Dockerfile, docker-compose, CI/release workflows, PR template

docker-compose.yml

@@ -0,0 +1,14 @@
+services:
+  steward:
+    image: ghcr.io/djw4/steward:latest
+    # To build locally instead: uncomment the next line and comment out image above
+    # build: .
+    user: "1000:1000"  # matches the UID/GID created in the Dockerfile
+    env_file: .env     # copy .env.example → .env and fill in your values
+    environment:
+      THREAD_MEMORY_PATH: /data/thread_memory.json
+    volumes:
+      # Bind-mount a local ./data directory for persistent storage.
+      # Create it before the first run: mkdir -p data
+      - ./data:/data
+    restart: unless-stopped