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.

app/views/leaderboard.py

@@ -0,0 +1,89 @@
+#!/usr/bin/env python3
+"""
+Leaderboard views for displaying team rankings.
+"""
+from fastapi import APIRouter, Depends, Request, Query
+from fastapi.responses import HTMLResponse
+from sqlalchemy.orm import Session
+from sqlalchemy import func, desc
+from datetime import datetime, timedelta
+
+from ..db import SessionLocal
+from ..models import Team, TeamMembership, QRTicket
+from ..templates_config import templates
+
+router = APIRouter()
+
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()
+
+@router.get("/", response_class=HTMLResponse)
+async def show_leaderboard(
+    request: Request, 
+    timeframe: str = Query("all", regex="^(week|month|all)$"),
+    db: Session = Depends(get_db)
+):
+    """Show the leaderboard with team rankings."""
+    
+    # Define cutoff date based on timeframe
+    cutoff_date = None
+    if timeframe == "week":
+        cutoff_date = datetime.now() - timedelta(days=7)
+        time_label = "This Week"
+    elif timeframe == "month":
+        cutoff_date = datetime.now() - timedelta(days=30)
+        time_label = "This Month"
+    else:
+        timeframe = "all"  # Ensure valid value
+        time_label = "All Time"
+
+    # Base query to get teams
+    query = db.query(
+        Team.id,
+        Team.name,
+        func.coalesce(func.sum(QRTicket.points), 0).label('total_points')
+    ).join(
+        QRTicket,
+        QRTicket.redeemed_at_team == Team.id,
+        isouter=True
+    )
+    
+    # Apply time filter if needed
+    if cutoff_date:
+        # Note: This assumes QRTicket has a created_at or similar timestamp field
+        # If not, you would need to add one to track when points were added
+        # For now, this is a placeholder that assumes all tickets are from "now"
+        # query = query.filter(QRTicket.created_at >= cutoff_date)
+        pass
+    
+    # Group and order
+    teams_ranking = query.group_by(Team.id).order_by(desc('total_points')).all()
+    
+    # Add ranks
+    ranked_teams = []
+    for idx, team in enumerate(teams_ranking):
+        ranked_teams.append({
+            'rank': idx + 1,
+            'id': team.id,
+            'name': team.name,
+            'points': team.total_points,
+            'change': 0  # Placeholder for rank change - would require historical data
+        })
+    
+    # Get top 3 teams for podium display
+    top_teams = ranked_teams[:3] if len(ranked_teams) >= 3 else ranked_teams + [None] * (3 - len(ranked_teams))
+
+    return templates.TemplateResponse(
+        "leaderboard.html", 
+        {
+            "request": request,
+            "teams": ranked_teams,
+            "top_teams": top_teams,
+            "timeframe": timeframe,
+            "time_label": time_label
+        }
+    )