Update bun.lock and remove DependencyManager tests

- Added new dependency "@techniker-me/tools" and updated existing dependencies to specific versions in bun.lock
- Removed the DependencyManager test file as part of codebase cleanup

__test__/mocks/index.ts

@@ -0,0 +1,3 @@
+export * from './MockDatabase';
+export * from './MockLogger';
+export * from './MockUserServices';