Implement user authentication and management system with FastAPI

- Added authentication routes for login, registration, password reset, and account deletion in `auth.py`.
- Implemented user profile management, including updating user information and changing passwords.
- Created dashboard views to display user-specific information and recent activity in `dashboard.py`.
- Developed leaderboard views to show team rankings and points in `leaderboard.py`.
- Added QR code generation and redemption functionality in `qr.py` and `redeem.py`.
- Implemented team management features, allowing users to create and join teams in `teams.py`.
- Introduced session debugging utility to assist with session-related issues in `debug_session.py`.
- Configured Docker Compose for MySQL database and FastAPI application with environment variables.
- Updated requirements.txt to include necessary dependencies for the application.

debug_session.py

@@ -0,0 +1,30 @@
+#!/usr/bin/env python3
+"""
+Utility module to help debug session problems.
+"""
+from fastapi import Request
+
+def print_session_debug(request: Request):
+    """Print debug information about the request session."""
+    print("\n=== SESSION DEBUG INFO ===")
+    print(f"Request URL: {request.url}")
+    print(f"Session in scope: {'session' in request.scope}")
+    
+    if 'session' in request.scope:
+        print("Session contents:")
+        try:
+            for key, value in request.session.items():
+                print(f"  {key}: {value}")
+        except Exception as e:
+            print(f"Error accessing session items: {e}")
+    else:
+        print("No session found in request scope")
+    
+    print("Headers:")
+    for name, value in request.headers.items():
+        if name.lower() in ('cookie', 'set-cookie'):
+            print(f"  {name}: [REDACTED]")  # Don't print actual cookie values
+        else:
+            print(f"  {name}: {value}")
+    
+    print("=========================\n")