Add user stats and activity tracking

backend/app/routers/auth.py

@@ -7,6 +7,11 @@ from ..db import (
     set_last_login,
     get_user_by_username,
     set_user_password,
+    get_user_activity,
+    get_user_activity_summary,
+    get_user_request_stats,
+    get_global_request_leader,
+    get_global_request_total,
 )
 from ..runtime import get_runtime_settings
 from ..clients.jellyfin import JellyfinClient
@@ -17,6 +22,10 @@ from ..auth import get_current_user
 router = APIRouter(prefix="/auth", tags=["auth"])
 
 
+def _normalize_username(value: str) -> str:
+    return value.strip().lower()
+
+
 @router.post("/login")
 async def login(form_data: OAuth2PasswordRequestForm = Depends()) -> dict:
     user = verify_user_password(form_data.username, form_data.password)
@@ -92,6 +101,31 @@ async def me(current_user: dict = Depends(get_current_user)) -> dict:
     return current_user
 
 
+@router.get("/profile")
+async def profile(current_user: dict = Depends(get_current_user)) -> dict:
+    username = current_user.get("username") or ""
+    username_norm = _normalize_username(username) if username else ""
+    stats = get_user_request_stats(username_norm)
+    global_total = get_global_request_total()
+    leader = get_global_request_leader()
+    share = (stats.get("total", 0) / global_total) if global_total else 0
+    activity_summary = get_user_activity_summary(username) if username else {}
+    activity_recent = get_user_activity(username, limit=5) if username else []
+    return {
+        "user": current_user,
+        "stats": {
+            **stats,
+            "share": share,
+            "global_total": global_total,
+            "most_active_user": leader,
+        },
+        "activity": {
+            **activity_summary,
+            "recent": activity_recent,
+        },
+    }
+
+
 @router.post("/password")
 async def change_password(payload: dict, current_user: dict = Depends(get_current_user)) -> dict:
     if current_user.get("auth_provider") != "local":