feat(room): read model_id in search results, register m20260420_000003 migration

libs/migrate/lib.rs

@@ -1,5 +1,7 @@
 pub use sea_orm_migration::prelude::*;
 
+mod m20260420_000003_add_model_id_to_room_message;
+
 pub async fn execute_sql(manager: &SchemaManager<'_>, sql: &str) -> Result<(), DbErr> {
     for stmt in split_sql_statements(sql) {
         if stmt.is_empty() {

libs/room/src/search.rs

@@ -119,6 +119,7 @@ impl RoomService {
                 room: row.try_get::<RoomId>("", "room").unwrap_or_default(),
                 sender_type,
                 sender_id: row.try_get::<Option<UserId>>("", "sender_id").ok().flatten(),
+                model_id: row.try_get::<Option<Uuid>>("", "model_id").ok().flatten(),
                 thread: row.try_get::<Option<RoomThreadId>>("", "thread").ok().flatten(),
                 in_reply_to: row.try_get::<Option<MessageId>>("", "in_reply_to").ok().flatten(),
                 content: row.try_get::<String>("", "content").unwrap_or_default(),