Refactor streak modal into a single card with top border-b iframe animation and bottom greetings, daily check-in Snapchat-like streak update/reset logic

backend/main.py

@@ -480,6 +480,34 @@ def get_user_profile(user_id: UUID, session: Session = Depends(get_session)):
     user = session.get(models.User, user_id)
     if not user:
         raise HTTPException(status_code=404, detail="User not found")
+        
+    # Snapchat-style daily active streak check
+    now = datetime.utcnow()
+    today = now.date()
+    last_active_date = user.last_active.date()
+    delta = (today - last_active_date).days
+    
+    changed = False
+    if user.streak_count == 0:
+        user.streak_count = 1
+        user.longest_streak = max(user.longest_streak, 1)
+        user.last_active = now
+        changed = True
+    elif delta == 1:
+        user.streak_count += 1
+        user.longest_streak = max(user.longest_streak, user.streak_count)
+        user.last_active = now
+        changed = True
+    elif delta > 1:
+        user.streak_count = 1
+        user.last_active = now
+        changed = True
+        
+    if changed:
+        session.add(user)
+        session.commit()
+        session.refresh(user)
+        
     return user
 
 class UserUpdate(BaseModel):