Feature: Ratings, Lightbox, Forum-Standort, Notifications, Routen-Recording, Chat-Picker

- Bewertungssystem (ratings.py): Sterne für Sitter/Walks/Places/Routen
- Admin: Server-Log-Viewer + OSM-Cache-Statistiken
- Chat: "Neue Nachricht"-Button mit Freundesliste-Picker
- Forum: 5 neue Kategorien, Standorteingabe (locationPicker), Absende-Toast, Lightbox
- Freunde: Aktivitäts-Filter (Chips), Freundschaftsanfrage → In-App-Notification
- Sitter: locationPicker statt manuelle Koordinateneingabe + ratingStars
- Tagebuch: Bilder-Lightbox im Detail-View, iOS-Modal-Header-Fix (90svh)
- Routen: Start/Stopp-Button wechselt Zustand, nutzt Page_map.isRecording()
- Benachrichtigungen: Delete-Button sichtbar, typ-basierte Navigation, Toast-Feedback
- OSM: globales Semaphore + 429-Retry-Logic; Scheduler: München-Umland, täglich
- SW by-v225, APP_VER 202

backend/routes/friends.py

@@ -96,7 +96,7 @@ async def search_users(q: str = "", user=Depends(get_current_user)):
                     FROM dogs d WHERE d.user_id=u.id AND d.is_public=1) AS dogs_json
             FROM users u
             WHERE u.id != ?
-              AND u.name LIKE ?
+              AND norm(u.name) LIKE norm(?)
               AND NOT EXISTS (
                 SELECT 1 FROM friendships f
                 WHERE (f.requester_id=? AND f.addressee_id=u.id)
@@ -142,6 +142,19 @@ async def send_request(target_id: int, user=Depends(get_current_user)):
             (uid, target_id)
         )
 
+    # In-App Benachrichtigung + Badge
+    try:
+        with db() as conn:
+            conn.execute(
+                """INSERT INTO notifications (user_id, type, title, body, data)
+                   VALUES (?, 'friend_request', 'Neue Freundschaftsanfrage', ?, ?)""",
+                (target_id,
+                 f"{user['name']} möchte dein Freund sein.",
+                 '{"page":"friends"}')
+            )
+    except Exception:
+        pass
+
     try:
         from routes.push import send_push_to_user
         send_push_to_user(target_id, {
@@ -223,7 +236,7 @@ async def get_activity(user=Depends(get_current_user)):
             JOIN users u ON u.id  = d.user_id
             WHERE d.user_id IN ({ph})
             ORDER BY dg.created_at DESC
-            LIMIT 30
+            LIMIT 15
         """, friend_ids).fetchall()
 
         # Gesundheitseinträge der Freunde (nur Typ + Datum, kein Inhalt)
@@ -241,7 +254,7 @@ async def get_activity(user=Depends(get_current_user)):
             JOIN users u ON u.id  = d.user_id
             WHERE d.user_id IN ({ph})
             ORDER BY h.created_at DESC
-            LIMIT 30
+            LIMIT 15
         """, friend_ids).fetchall()
 
         # Gassi-Treffen der Freunde
@@ -259,7 +272,7 @@ async def get_activity(user=Depends(get_current_user)):
             JOIN users u ON u.id = w.user_id
             WHERE w.user_id IN ({ph})
             ORDER BY w.created_at DESC
-            LIMIT 30
+            LIMIT 15
         """, friend_ids).fetchall()
 
         # Neue Hunde (angelegt in den letzten 30 Tagen)
@@ -277,7 +290,7 @@ async def get_activity(user=Depends(get_current_user)):
             WHERE d.user_id IN ({ph})
               AND d.created_at >= datetime('now', '-30 days')
             ORDER BY d.created_at DESC
-            LIMIT 30
+            LIMIT 15
         """, friend_ids).fetchall()
 
     _ICON = {
@@ -309,7 +322,7 @@ async def get_activity(user=Depends(get_current_user)):
 
     # Zusammenführen und nach created_at absteigend sortieren, max. 30
     items.sort(key=lambda x: x["created_at"] or "", reverse=True)
-    return items[:30]
+    return items[:50]
 
 
 @router.delete("/{friend_user_id}")