refactor: Clean lint errors and organise files

e2e/helpers/start-test-server.js

@@ -16,6 +16,7 @@ const TEST_PORT = process.env.TEST_SERVER_PORT || '3099';
 const SERVER_DIR = join(__dirname, '..', '..', 'server');
 const SERVER_ENTRY = join(SERVER_DIR, 'src', 'index.ts');
 const SERVER_TSCONFIG = join(SERVER_DIR, 'tsconfig.json');
+const TS_NODE_BIN = join(SERVER_DIR, 'node_modules', 'ts-node', 'dist', 'bin.js');
 
 // ── Create isolated temp data directory ──────────────────────────────
 const tmpDir = mkdtempSync(join(tmpdir(), 'metoyou-e2e-'));
@@ -43,8 +44,8 @@ console.log(`[E2E Server] Starting on port ${TEST_PORT}...`);
 // Module resolution (require/import) uses __dirname, so server source
 // and node_modules are found from the real server/ directory.
 const child = spawn(
-  'npx',
-  ['ts-node', '--project', SERVER_TSCONFIG, SERVER_ENTRY],
+  process.execPath,
+  [TS_NODE_BIN, '--project', SERVER_TSCONFIG, SERVER_ENTRY],
   {
     cwd: tmpDir,
     env: {
@@ -55,7 +56,6 @@ const child = spawn(
       DB_SYNCHRONIZE: 'true',
     },
     stdio: 'inherit',
-    shell: true,
   }
 );