intelligence(deepdive): Docker deployment scaffold for #830

- Add Dockerfile for production containerized pipeline
- Add docker-compose.yml for full stack deployment
- Add .dockerignore for clean builds
- Add deploy.sh: one-command build, test, and systemd timer install

This provides a sovereign, reproducible deployment path for the
Deep Dive daily briefing pipeline.

intelligence/deepdive/docker-compose.yml

@@ -0,0 +1,54 @@
+# Deep Dive — Full Containerized Deployment
+# Issue: #830 — Sovereign NotebookLM Daily Briefing
+#
+# Usage:
+#   docker compose up -d          # Start stack
+#   docker compose run --rm deepdive --dry-run   # Test pipeline
+#   docker compose run --rm deepdive --today     # Live run
+#
+# For daily automation, use systemd timer or host cron calling:
+#   docker compose -f /path/to/docker-compose.yml run --rm deepdive --today
+
+services:
+  deepdive:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    container_name: deepdive
+    image: deepdive:latest
+    volumes:
+      # Mount your config from host
+      - ./config.yaml:/app/config.yaml:ro
+      # Persist cache and outputs
+      - deepdive-cache:/app/cache
+      - deepdive-output:/app/output
+    environment:
+      - OPENAI_API_KEY=${OPENAI_API_KEY:-}
+      - ANTHROPIC_API_KEY=${ANTHROPIC_API_KEY:-}
+      - ELEVENLABS_API_KEY=${ELEVENLABS_API_KEY:-}
+      - TELEGRAM_BOT_TOKEN=${TELEGRAM_BOT_TOKEN:-}
+      - TELEGRAM_HOME_CHANNEL=${TELEGRAM_HOME_CHANNEL:-}
+      - DEEPDIVE_CACHE_DIR=/app/cache
+    command: ["--dry-run"]
+    # Optional: attach to Ollama for local LLM inference
+    # networks:
+    #   - deepdive-net
+
+  # Optional: Local LLM backend (uncomment if using local inference)
+  # ollama:
+  #   image: ollama/ollama:latest
+  #   container_name: deepdive-ollama
+  #   volumes:
+  #     - ollama-models:/root/.ollama
+  #   ports:
+  #     - "11434:11434"
+  #   networks:
+  #     - deepdive-net
+
+volumes:
+  deepdive-cache:
+  deepdive-output:
+  # ollama-models:
+
+# networks:
+#   deepdive-net: