Simplify deployment: remove startup script, use direct gunicorn command

Author: seligj95

infra/main.bicep

@@ -62,7 +62,7 @@ resource appService 'Microsoft.Web/sites@2024-04-01' = {
     httpsOnly: true
     siteConfig: {
       linuxFxVersion: 'PYTHON|3.12'
-      appCommandLine: 'bash startup.sh'
+      appCommandLine: 'python -m gunicorn --bind=0.0.0.0:8000 --workers=2 --timeout=600 main:app'
       appSettings: [
         {
           name: 'SECRET_KEY'

main.py

@@ -9,8 +9,13 @@
 
 # Import after path setup to avoid linting issues
 from src.app import create_app  # noqa: E402
+from src.models import db  # noqa: E402
 
 app = create_app()
 
+# Initialize database tables
+with app.app_context():
+    db.create_all()
+
 if __name__ == '__main__':
     app.run(debug=False, host='0.0.0.0', port=8000)

src/app.py

@@ -18,17 +18,17 @@ def create_app():
     # Get the absolute path to the project root
     current_dir = os.path.dirname(os.path.abspath(__file__))
     project_root = os.path.dirname(current_dir)
-    
+
     # Set paths relative to the project structure
     static_folder = os.path.join(project_root, 'static')
     template_folder = os.path.join(current_dir, 'templates')
-    
+
     app = Flask(
         __name__,
         static_folder=static_folder,
         template_folder=template_folder
     )
-    
+
     # Configuration
     app.config['SECRET_KEY'] = os.environ.get('SECRET_KEY', 'dev-secret-key')
     app.config['SQLALCHEMY_DATABASE_URI'] = os.environ.get(