fix(server): simplify moduleNameMapper regex and update test:coverage script

Author: yau-wd

packages/server/jest.config.js

@@ -17,8 +17,7 @@ module.exports = {
 
     // Stub ESM-only MCP SDK imports for Jest's CJS runtime.
     moduleNameMapper: {
-        '^@modelcontextprotocol/sdk$': '<rootDir>/../components/test/__mocks__/esm-stub.js',
-        '^@modelcontextprotocol/sdk/(.*)$': '<rootDir>/../components/test/__mocks__/esm-stub.js'
+        '^@modelcontextprotocol/sdk(/.*)?$': '<rootDir>/../components/test/__mocks__/esm-stub.js'
     },
 
     // File extensions to recognize in module resolution

packages/server/package.json

@@ -48,7 +48,7 @@
         "e2e": "start-server-and-test dev http://localhost:3000 cypress:run",
         "cypress:ci": "START_SERVER_AND_TEST_INSECURE=1 start-server-and-test start https-get://localhost:3000 cypress:run",
         "test": "jest --runInBand --detectOpenHandles --forceExit",
-        "test:coverage": "jest --runInBand --detectOpenHandles --forceExit --coverage"
+        "test:coverage": "pnpm test --coverage"
     },
     "keywords": [],
     "homepage": "https://flowiseai.com",