fix: evitar usar currentDb en tests al obtener DB

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

src/db/locator.ts

@@ -36,6 +36,8 @@ export function getDb(): Database {
     if (!testScope) testScope = new AsyncLocalStorage<Database>();
     const scoped = testScope.getStore();
     if (scoped) return scoped;
+    // En tests, no hacer fallback al currentDb global para evitar fugas entre suites
+    throw new DbNotConfiguredError('Database has not been configured. Call setDb(db) before using getDb().');
   }
   if (currentDb) return currentDb;
   throw new DbNotConfiguredError('Database has not been configured. Call setDb(db) before using getDb().');