feat(log): PG 分区清理与 logstore import-lint

CleanupExpired 先按月 DROP 过期分区，再删边界行并清理空分区；apps 禁止直连 analytics。

internal/repository/logstore/clickhouse.go

@@ -86,6 +86,14 @@ func (s *clickhouseUserAccessLogStore) EnsurePartitions(_ context.Context, _, _
 	return nil
 }
 
+func (s *clickhouseUserAccessLogStore) DropEmptyPartitions(_ context.Context, _ time.Time) error {
+	return nil
+}
+
+func (s *clickhouseUserAccessLogStore) DropExpiredPartitions(_ context.Context, _ time.Time) error {
+	return nil
+}
+
 func (s *clickhouseUserAccessLogStore) MigrationRange(ctx context.Context) (time.Time, time.Time, error) {
 	if db.ChConn == nil {
 		return time.Time{}, time.Time{}, fmt.Errorf("clickhouse connection is not initialized")