fix(pheby): restore paged history across session resets

plugin/pheby/server.py

@@ -426,8 +426,17 @@ class PhebyServer:
             limit = max(1, min(int(limit), proto.MAX_HISTORY_MESSAGES))
         except (TypeError, ValueError):
             limit = proto.MAX_HISTORY_MESSAGES
-        history, found = await self.bridge.conversation_history(
-            conversation_id, limit)
+        cursor = message.get("before_message_id")
+        before_id = None
+        if cursor is not None:
+            if (not isinstance(cursor, str) or not cursor.startswith("m")
+                    or not cursor[1:].isdigit() or len(cursor) > 20):
+                await client.send_json(proto.error_event(
+                    proto.ERR_BAD_REQUEST, "Invalid before_message_id", request_id))
+                return
+            before_id = int(cursor[1:])
+        history, found, has_more = await self.bridge.conversation_history(
+            conversation_id, limit, before_id=before_id)
         if not found:
             await client.send_json(proto.error_event(
                 proto.ERR_CONVERSATION_NOT_FOUND,
@@ -438,6 +447,7 @@ class PhebyServer:
             "type": proto.S_CONVERSATION_HISTORY,
             "conversation_id": conversation_id,
             "messages": history,
+            "has_more": has_more,
             "attachments": self.store.list_for_conversation(conversation_id),
             **runtime,
             **({"request_id": request_id} if request_id else {}),