Feature/Fix: Routen-Navi, Badge-Klick-Fix, Forum-Edit, Chat-Unread-Refresh

- Routen: Navi-Button öffnet Apple Maps/Google Maps mit Start/Ziel-GPS
- Routen: Teilen-Button nutzt navigator.share() mit Fallback auf Clipboard
- Routen: Icon 'share' → 'arrow-square-out' (war nicht im Sprite)
- Nav-Badge: pointer-events:none → Badge blockiert keine Klicks mehr
- visibilitychange: Badges + Chat-Liste sofort refresh bei App-Rückkehr
- Forum: eigene Threads und Antworten bearbeiten (PATCH /threads/content, PATCH /posts)
- SW by-v238, APP_VER 215

backend/routes/forum.py

@@ -37,6 +37,13 @@ class ThreadPatch(BaseModel):
     is_pinned:  Optional[int] = None
     is_locked:  Optional[int] = None
 
+class ThreadUpdate(BaseModel):
+    titel: Optional[str] = None
+    text:  Optional[str] = None
+
+class PostUpdate(BaseModel):
+    text: str
+
 class LikeBody(BaseModel):
     target_type: str   # 'thread' | 'post'
     target_id:   int
@@ -330,6 +337,38 @@ async def create_post(thread_id: int, data: PostCreate, user=Depends(get_current
     return pd
 
 
+# ------------------------------------------------------------------
+# PATCH /api/forum/threads/{id}/content — Besitzer: titel/text
+# ------------------------------------------------------------------
+@router.patch("/threads/{thread_id}/content")
+async def update_thread_content(thread_id: int, data: ThreadUpdate, user=Depends(get_current_user)):
+    with db() as conn:
+        t = conn.execute("SELECT user_id FROM forum_threads WHERE id=?", (thread_id,)).fetchone()
+        if not t: raise HTTPException(404, "Thread nicht gefunden.")
+        if t["user_id"] != user["id"]: raise HTTPException(403, "Nicht dein Beitrag.")
+        updates, vals = [], []
+        if data.titel is not None and data.titel.strip():
+            updates.append("titel=?"); vals.append(data.titel.strip())
+        if data.text is not None:
+            updates.append("text=?"); vals.append(data.text.strip())
+        if not updates: return {"ok": True}
+        conn.execute(f"UPDATE forum_threads SET {','.join(updates)} WHERE id=?", (*vals, thread_id))
+    return {"ok": True}
+
+
+# ------------------------------------------------------------------
+# PATCH /api/forum/posts/{id} — Besitzer: text
+# ------------------------------------------------------------------
+@router.patch("/posts/{post_id}")
+async def update_post(post_id: int, data: PostUpdate, user=Depends(get_current_user)):
+    with db() as conn:
+        p = conn.execute("SELECT user_id FROM forum_posts WHERE id=?", (post_id,)).fetchone()
+        if not p: raise HTTPException(404, "Beitrag nicht gefunden.")
+        if p["user_id"] != user["id"]: raise HTTPException(403, "Nicht dein Beitrag.")
+        conn.execute("UPDATE forum_posts SET text=? WHERE id=?", (data.text.strip(), post_id))
+    return {"ok": True}
+
+
 # ------------------------------------------------------------------
 # DELETE /api/forum/posts/{id}
 # ------------------------------------------------------------------