fix(01-05): align matrix confirmation scope with user and room

- carry Matrix room_id through command callbacks
- persist pending confirmations by user_id and room_id

adapter/matrix/bot.py

@@ -20,7 +20,7 @@ from adapter.matrix.converter import from_room_event
 from adapter.matrix.handlers import register_matrix_handlers
 from adapter.matrix.handlers.auth import handle_invite
 from adapter.matrix.room_router import resolve_chat_id
-from adapter.matrix.store import set_pending_confirm
+from adapter.matrix.store import get_room_meta, set_pending_confirm
 from core.auth import AuthManager
 from core.chat import ChatManager
 from core.handler import EventDispatcher
@@ -150,15 +150,19 @@ async def send_outgoing(
         if event.buttons and store is not None:
             action_id = event.buttons[0].action
             payload = event.buttons[0].payload
-            await set_pending_confirm(
-                store,
-                room_id,
-                {
-                    "action_id": action_id,
-                    "description": event.text,
-                    "payload": payload,
-                },
-            )
+            room_meta = await get_room_meta(store, room_id)
+            matrix_user_id = room_meta.get("matrix_user_id") if room_meta else None
+            if matrix_user_id:
+                await set_pending_confirm(
+                    store,
+                    matrix_user_id,
+                    room_id,
+                    {
+                        "action_id": action_id,
+                        "description": event.text,
+                        "payload": payload,
+                    },
+                )
         return