Step 3: MongoDB and Redis integration complete

- Added MongoDB and Redis containers to docker-compose
- Integrated Users service with MongoDB using Beanie ODM
- Replaced in-memory storage with persistent MongoDB
- Added proper data models with email validation
- Verified data persistence with MongoDB ObjectIDs

Services running:
- MongoDB: Port 27017 (with health checks)
- Redis: Port 6379 (with health checks)
- Users service: Connected to MongoDB
- Console: API Gateway routing working

Test: Users now stored in MongoDB with persistence

🤖 Generated with Claude Code

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

services/users/backend/database.py

@@ -0,0 +1,22 @@
+from motor.motor_asyncio import AsyncIOMotorClient
+from beanie import init_beanie
+import os
+from models import User
+
+
+async def init_db():
+    """Initialize database connection"""
+    # Get MongoDB URL from environment
+    mongodb_url = os.getenv("MONGODB_URL", "mongodb://mongodb:27017")
+    db_name = os.getenv("DB_NAME", "users_db")
+    
+    # Create Motor client
+    client = AsyncIOMotorClient(mongodb_url)
+    
+    # Initialize beanie with the User model
+    await init_beanie(
+        database=client[db_name],
+        document_models=[User]
+    )
+    
+    print(f"Connected to MongoDB: {mongodb_url}/{db_name}")