fix(backend): fix ApPersonService unsound type cast (#15629)

Signed-off-by: eternal-flame-AD <yume@yumechi.jp>

packages/backend/migration/1741424411879-user-featured-fixup.js

@@ -0,0 +1,26 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+export class UserFeaturedFixup1741424411879 {
+    name = 'UserFeaturedFixup1741424411879'
+
+    async up(queryRunner) {
+        await queryRunner.query(`CREATE OR REPLACE FUNCTION pg_temp.extract_ap_id(text) RETURNS text AS $$
+            SELECT
+                CASE
+                    WHEN $1 ~ '^https?://' THEN $1
+                    WHEN $1 LIKE '{%' THEN COALESCE(jsonb_extract_path_text($1::jsonb, 'id'), null)
+                    ELSE null
+                END;
+        $$ LANGUAGE sql IMMUTABLE;`);
+
+        // "host" is NOT NULL is not needed but just in case add it to prevent overwriting irreplaceable data
+        await queryRunner.query(`UPDATE "user" SET "featured" = pg_temp.extract_ap_id("featured") WHERE "host" IS NOT NULL`);
+    }
+
+    async down(queryRunner) {
+        // fixup migration, no down migration
+    }
+}