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>

src/server/mcp/index.ts

@@ -65,7 +65,7 @@ function createMcpServer(db: Db): McpServer {
 			mimeType: "application/json",
 		},
 		async () => {
-			const summary = getCollectionSummary(db);
+			const summary = await getCollectionSummary(db);
 			return {
 				contents: [
 					{