fix(search): load FTS during core DB init

gitnexus/src/core/lbug/lbug-adapter.ts

@@ -330,7 +330,8 @@ const doInitLbug = async (dbPath: string) => {
     }
   }
 
-  // Load VECTOR extension for semantic search support
+  // Load query extensions once per core adapter session.
+  await loadFTSExtension();
   await loadVectorExtension();
 
   currentDbPath = dbPath;

gitnexus/test/helpers/test-indexed-db.ts

@@ -87,10 +87,7 @@ export function withTestLbugDB(
     //    already open for this dbPath (no new native objects created).
     await adapter.initLbug(dbPath);
 
-    // 2. Load FTS extension (idempotent — skips if already loaded)
-    await adapter.loadFTSExtension();
-
-    // 3. Drop stale FTS indexes from previous test file
+    // 2. Drop stale FTS indexes from previous test file
     if (options?.ftsIndexes?.length) {
       for (const idx of options.ftsIndexes) {
         try {
@@ -101,27 +98,27 @@ export function withTestLbugDB(
       }
     }
 
-    // 4. Clear all data via adapter (DETACH DELETE cascades to relationships)
+    // 3. Clear all data via adapter (DETACH DELETE cascades to relationships)
     for (const table of NODE_TABLES) {
       await adapter.executeQuery(`MATCH (n:\`${table}\`) DETACH DELETE n`);
     }
     await adapter.executeQuery(`MATCH (n:${EMBEDDING_TABLE_NAME}) DELETE n`);
 
-    // 5. Seed new data via adapter
+    // 4. Seed new data via adapter
     if (options?.seed?.length) {
       for (const q of options.seed) {
         await adapter.executeQuery(q);
       }
     }
 
-    // 6. Create FTS indexes on fresh data
+    // 5. Create FTS indexes on fresh data
     if (options?.ftsIndexes?.length) {
       for (const idx of options.ftsIndexes) {
         await adapter.createFTSIndex(idx.table, idx.indexName, idx.columns);
       }
     }
 
-    // 7. Open pool adapter by injecting the core adapter's writable Database.
+    // 6. Open pool adapter by injecting the core adapter's writable Database.
     //    LadybugDB enforces file locks — writable + read-only can't coexist
     //    on the same path, and db.close() segfaults on macOS due to N-API
     //    destructor issues.  Reusing the writable Database avoids both problems.
@@ -148,7 +145,7 @@ export function withTestLbugDB(
     const tmpHandle: TestDBHandle = { dbPath: tmpDir, cleanup: async () => {} };
     ref.handle = { dbPath, repoId, tmpHandle, cleanup };
 
-    // 8. User's final setup (mocks, dynamic imports, etc.)
+    // 7. User's final setup (mocks, dynamic imports, etc.)
     if (options?.afterSetup) {
       await options.afterSetup(ref.handle);
     }

gitnexus/test/integration/lbug-core-adapter.test.ts

@@ -70,6 +70,20 @@ withTestLbugDB(
         }
       });
 
+      it('initLbug loads FTS so reopened HTTP-style sessions can query existing indexes', async () => {
+        const adapter = await import('../../src/core/lbug/lbug-adapter.js');
+        const indexName = 'function_fts_init_probe';
+
+        await adapter.createFTSIndex('Function', indexName, ['name', 'content']);
+        await adapter.closeLbug();
+
+        await adapter.initLbug(handle.dbPath);
+
+        await expect(adapter.queryFTS('Function', indexName, 'main', 5)).resolves.toEqual(
+          expect.arrayContaining([expect.objectContaining({ filePath: 'src/index.ts' })]),
+        );
+      });
+
       it('getLbugStats: returns correct node and edge counts for seeded data', async () => {
         const { getLbugStats } = await import('../../src/core/lbug/lbug-adapter.js');
 

gitnexus/vitest.config.ts

@@ -51,6 +51,7 @@ export default defineConfig({
           name: 'lbug-db',
           include: [
             'test/integration/lbug-core-adapter.test.ts',
+            'test/integration/lbug-vector-extension.test.ts',
             'test/integration/lbug-pool.test.ts',
             'test/integration/lbug-pool-stability.test.ts',
             'test/integration/local-backend.test.ts',
@@ -62,6 +63,8 @@ export default defineConfig({
             'test/integration/lbug-lock-retry.test.ts',
             'test/integration/api-impact-e2e.test.ts',
             'test/integration/shape-check-regression.test.ts',
+            'test/integration/java-class-impact.test.ts',
+            'test/integration/class-impact-all-languages.test.ts',
           ],
           fileParallelism: false,
           sequence: { groupOrder: 1 },
@@ -75,6 +78,7 @@ export default defineConfig({
           include: ['test/**/*.test.ts'],
           exclude: [
             'test/integration/lbug-core-adapter.test.ts',
+            'test/integration/lbug-vector-extension.test.ts',
             'test/integration/lbug-pool.test.ts',
             'test/integration/lbug-pool-stability.test.ts',
             'test/integration/local-backend.test.ts',
@@ -84,9 +88,10 @@ export default defineConfig({
             'test/integration/augmentation.test.ts',
             'test/integration/staleness-and-stability.test.ts',
             'test/integration/lbug-lock-retry.test.ts',
-            'test/integration/lbug-lock-retry.test.ts',
             'test/integration/api-impact-e2e.test.ts',
             'test/integration/shape-check-regression.test.ts',
+            'test/integration/java-class-impact.test.ts',
+            'test/integration/class-impact-all-languages.test.ts',
           ],
         },
       },