fix(crawler): update env and database config

Updated crawler configuration and database connection handling. Added .gitignore to exclude pycache and .env file.

.env

@@ -1 +1 @@
-DATABASE_URL=postgres://postgres:password@192.168.1.204:5432/fuelprices 
+DATABASE_URL=postgresql://postgres:password@192.168.1.204:5432/fuelprices

.gitignore

@@ -0,0 +1,3 @@
+__pycache__/
+*.pyc
+.env

database.py

@@ -5,7 +5,7 @@ from sqlalchemy.orm import sessionmaker
 from sqlalchemy.ext.declarative import declarative_base
 
 # --- Database Configuration ---
-DATABASE_URL = "postgresql://postgres:password@192.168.1.204:5432/fuelprices"
+DATABASE_URL = os.getenv("DATABASE_URL", "postgresql://postgres:password@192.168.1.204:5432/fuelprices")
 # Ensure this DATABASE_URL is correct for your setup (e.g., 'db' for Docker Compose,
 # 'host.docker.internal' or an IP for external DBs)
 # For your error, it seems you are trying to connect to 192.164.1.204