test: configurar DB en tests con setDb y resetDb

Co-authored-by: aider (openrouter/openai/gpt-5) <aider@aider.chat>

tests/unit/server/admin-approval.test.ts

@@ -3,6 +3,7 @@ import { Database } from 'bun:sqlite';
 import { WebhookServer } from '../../../src/server';
 import { initializeDatabase } from '../../../src/db';
 import { ResponseQueue } from '../../../src/services/response-queue';
+import { setDb, resetDb } from '../../../src/db/locator';
 
 let testDb: Database;
 let originalAdd: any;
@@ -27,6 +28,7 @@ describe('WebhookServer - /admin aprobación en modo enforce', () => {
 
   afterAll(() => {
     (ResponseQueue as any).add = originalAdd;
+    resetDb();
     testDb.close();
   });
 
@@ -40,6 +42,7 @@ describe('WebhookServer - /admin aprobación en modo enforce', () => {
     SimulatedResponseQueue.clear();
     (ResponseQueue as any).add = SimulatedResponseQueue.add;
     WebhookServer.dbInstance = testDb;
+    setDb(testDb);
 
     testDb.exec('DELETE FROM response_queue');
     testDb.exec('DELETE FROM allowed_groups');