refactor: update router import path and add random ID utility

- Changed the import path for router types from '@kevisual/router' to './route.ts' in src/router-define.ts.
- Added a new lock file (bun.lock) to manage dependencies.
- Introduced a new utility function in src/utils/random.ts to generate random IDs using the nanoid library.

src/router-define.ts

@@ -1,4 +1,4 @@
-import type { QueryRouterServer, RouteOpts, Run, RouteMiddleware } from '@kevisual/router';
+import type { QueryRouterServer, RouteOpts, Run, RouteMiddleware } from './route.ts';
 import type { DataOpts, Query, Result } from '@kevisual/query/query';
 // export type RouteObject<T extends readonly string[]> = {
 //   [K in T[number]]: RouteOpts;