Update test framework: fix run_tests.py to support all test files, add auto-import-check for test files

node_modules/zod/lib/__tests__/Mocker.d.ts

@@ -0,0 +1,17 @@
+export declare class Mocker {
+    pick: (...args: any[]) => any;
+    get string(): string;
+    get number(): number;
+    get bigint(): bigint;
+    get boolean(): boolean;
+    get date(): Date;
+    get symbol(): symbol;
+    get null(): null;
+    get undefined(): undefined;
+    get stringOptional(): any;
+    get stringNullable(): any;
+    get numberOptional(): any;
+    get numberNullable(): any;
+    get booleanOptional(): any;
+    get booleanNullable(): any;
+}