Add Reddit monitoring bot — backend, frontend, and Docker config

Python/FastAPI backend with PostgreSQL for collecting Reddit data via
public .json endpoints. React/Vite dashboard for analytics. Docker Compose
setup with API and worker services connecting to shared PostgreSQL.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docker-compose.yml

@@ -0,0 +1,20 @@
+services:
+  api:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    ports:
+      - "127.0.0.1:8000:8000"
+    env_file: .env
+    restart: unless-stopped
+    command: >
+      sh -c "alembic upgrade head &&
+             uvicorn backend.main:app --host 0.0.0.0 --port 8000"
+
+  worker:
+    build:
+      context: .
+      dockerfile: Dockerfile.worker
+    env_file: .env
+    restart: unless-stopped
+    command: python -m backend.worker.main