Updated data collection system

.env.example

@@ -13,3 +13,10 @@ META_AD_ACCOUNT_ID=act_your_account_id_here
 #   Run: uv run python src/meta_api_grabber/auth.py
 # Option 2: Manually provide a token from https://developers.facebook.com/tools/explorer/
 META_ACCESS_TOKEN=your_access_token_here
+
+# Database Configuration (TimescaleDB)
+# For local development using docker-compose, use these defaults:
+DATABASE_URL=postgresql://meta_user:meta_password@localhost:5432/meta_insights
+
+# For production, update with your actual database credentials:
+# DATABASE_URL=postgresql://username:password@host:port/database