feat(14-06): convert route tests + MCP tests to async PGlite

- All 8 route test files: async createTestApp(), async beforeEach
- MCP tools test: await createTestDb(), await getCollectionSummary()
- Fixed MCP tool files: added await to all service calls in items, categories, threads, setups tools
- Fixed MCP collection resource: made getCollectionSummary async
- Fixed MCP index.ts: await getCollectionSummary call
- Increased test timeout to 30s in bunfig.toml for PGlite WASM overhead
- Zero SQLite references remain in tests/

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

tests/routes/items.test.ts

@@ -4,8 +4,8 @@ import { categoryRoutes } from "../../src/server/routes/categories.ts";
 import { itemRoutes } from "../../src/server/routes/items.ts";
 import { createTestDb } from "../helpers/db.ts";
 
-function createTestApp() {
-	const db = createTestDb();
+async function createTestApp() {
+	const db = await createTestDb();
 	const app = new Hono();
 
 	// Inject test DB into context for all routes
@@ -22,8 +22,8 @@ function createTestApp() {
 describe("Item Routes", () => {
 	let app: Hono;
 
-	beforeEach(() => {
-		const testApp = createTestApp();
+	beforeEach(async () => {
+		const testApp = await createTestApp();
 		app = testApp.app;
 	});