fix(web): align dev server node runtime

scripts/dev-server-command.test.mjs

@@ -0,0 +1,18 @@
+import assert from 'node:assert/strict'
+import test from 'node:test'
+
+import { createChatlabServeCommand } from './dev-server-command.mjs'
+
+test('web dev backend runs through the current Node executable with the tsx loader', () => {
+  const command = createChatlabServeCommand({
+    rootDir: '/repo',
+    serverDir: '/repo/apps/cli',
+    coreDir: '/repo/packages/core/src',
+    runtimeDir: '/repo/packages/node-runtime/src',
+    backendPort: 3110,
+    nodeExecutable: '/custom/node',
+  })
+
+  assert.equal(command.command, '/custom/node')
+  assert.deepEqual(command.args, ['--watch', '--import', 'tsx', 'src/cli.ts', 'serve', '--port', '3110'])
+})