Use production config, and resolve issue with postgres url format (Unsure why this only surfaced after recreation of app)

app/__init__.py

@@ -1,3 +1,4 @@
+import os
 from flask import Flask
 from flask_sqlalchemy import SQLAlchemy
 from flask_migrate import Migrate
@@ -13,9 +14,12 @@ login_manager = LoginManager()
 login_manager.login_view = 'auth.login'
 login_manager.login_message_category = 'info'
 
-def create_app(config_class='app.config.DevelopmentConfig'):
+def create_app():
     app = Flask(__name__)
-    app.config.from_object(config_class)
+    
+    # Load configuration
+    config_name = os.getenv('FLASK_CONFIG', 'DevelopmentConfig')  # Default to DevelopmentConfig
+    app.config.from_object(f'app.config.{config_name}')
 
     # Initialize extensions
     db.init_app(app)