Stop War Room A2A loops and unlock full chat history with dates.

Detect repeating topics and pause A2A, load older messages beyond the old ~120 cap, and show clear date/time stamps on every bubble.

cockpit/app/routes/agents_api.py

@@ -572,16 +572,36 @@ async def warroom_open_dm(agent_key: str) -> dict[str, Any]:
 
 
 @router.get("/warroom/rooms/{room_id}/messages")
-async def warroom_list_messages(room_id: int, limit: int = 100, after_id: int | None = None) -> dict[str, Any]:
+async def warroom_list_messages(
+    room_id: int,
+    limit: int = 500,
+    after_id: int | None = None,
+    before_id: int | None = None,
+) -> dict[str, Any]:
     from app.services import agent_chat
 
     agent_chat.ensure_warroom()
     room = agent_chat.get_room(room_id)
     if not room:
         raise HTTPException(404, "Room niet gevonden")
-    items = agent_chat.list_messages(room_id, limit=min(limit, 300), after_id=after_id)
+    lim = min(max(1, limit), 5000)
+    items = agent_chat.list_messages(
+        room_id, limit=lim, after_id=after_id, before_id=before_id
+    )
     deleted_ids = agent_chat.list_deleted_ids(room_id) if after_id else []
-    return {"ok": True, "room": room, "items": items, "deleted_ids": deleted_ids}
+    total = agent_chat.count_messages(room_id)
+    oldest = agent_chat.oldest_message_id(room_id)
+    first_id = int(items[0]["id"]) if items else None
+    has_more = bool(oldest is not None and first_id is not None and first_id > oldest)
+    return {
+        "ok": True,
+        "room": room,
+        "items": items,
+        "deleted_ids": deleted_ids,
+        "total": total,
+        "has_more": has_more,
+        "oldest_id": oldest,
+    }
 
 
 @router.post("/warroom/rooms/{room_id}/messages")