修复远程缓存

migrations/0006_cached_status_metadata.sql

@@ -0,0 +1,9 @@
+-- Preserve enough ActivityPub Note metadata for remote cached statuses to
+-- render accurately and avoid exposing non-public deliveries.
+
+ALTER TABLE cached_statuses ADD COLUMN visibility TEXT NOT NULL DEFAULT 'public';
+ALTER TABLE cached_statuses ADD COLUMN mentions_json TEXT NOT NULL DEFAULT '[]';
+ALTER TABLE cached_statuses ADD COLUMN tags_json TEXT NOT NULL DEFAULT '[]';
+ALTER TABLE cached_statuses ADD COLUMN local_recipients_json TEXT NOT NULL DEFAULT '[]';
+
+CREATE INDEX IF NOT EXISTS idx_cached_statuses_visibility_time ON cached_statuses(visibility, published DESC);