diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 2cbf1909..a8a9088a 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -46,7 +46,5 @@ jobs:
       - name: Install Playwright browsers
         run: pnpm exec playwright install --with-deps chromium
 
-      - name: Run gate E2E checks (VCR replay)
+      - name: Run real UI smoke and gate E2E checks
         run: pnpm test:gate:e2e
-        env:
-          E2E_VCR_MODE: replay
diff --git a/package.json b/package.json
index f26f0383..31b83600 100644
--- a/package.json
+++ b/package.json
@@ -34,14 +34,16 @@
     "check:extension-release-secrets": "node scripts/check-extension-release-secrets.mjs packages/extension/dist",
     "test:e2e": "playwright test",
     "test:e2e:smart": "node scripts/smart-e2e.js",
+    "test:e2e:ui-smoke": "cross-env E2E_VCR_MODE=live E2E_EMPTY_MODEL_CONFIG=1 node scripts/run-e2e-group.js uiSmoke",
     "test:e2e:gate": "node scripts/run-e2e-group.js gate",
+    "test:e2e:gate:replay": "cross-env E2E_VCR_MODE=replay node scripts/run-e2e-group.js gate",
     "test:e2e:extended": "node scripts/run-e2e-group.js extended",
     "test:e2e:record": "node scripts/run-e2e-record.js",
     "test:e2e:replay": "cross-env E2E_VCR_MODE=replay node scripts/run-e2e-group.js extended",
     "compare:calibrate": "pnpm -F @prompt-optimizer/core build && node scripts/run-structured-compare-calibration.mjs",
     "test:gate:core": "pnpm -F @prompt-optimizer/core test:gate",
     "test:gate:ui": "pnpm -F @prompt-optimizer/core build && pnpm -F @prompt-optimizer/ui test",
-    "test:gate:e2e": "pnpm test:e2e:gate",
+    "test:gate:e2e": "node scripts/run-many.js -s test:e2e:ui-smoke test:e2e:gate:replay",
     "test:gate": "node scripts/run-many.js -s test:repo test:gate:core test:gate:ui",
     "test:gate:full": "node scripts/run-many.js -s test:gate test:gate:e2e",
     "test:fast": "pnpm -r test --run --passWithNoTests",
diff --git a/packages/desktop/package.json b/packages/desktop/package.json
index 280fe6c7..0c340ed3 100644
--- a/packages/desktop/package.json
+++ b/packages/desktop/package.json
@@ -43,6 +43,7 @@
       "preload.js",
       "remote-storage.js",
       "config/**/*",
+      "icons/**/*",
       "web-dist/**/*",
       "node_modules/**/*"
     ],
diff --git a/packages/ui/src/components/ModelManager.vue b/packages/ui/src/components/ModelManager.vue
index 5ca1e7b0..9eb31e8e 100644
--- a/packages/ui/src/components/ModelManager.vue
+++ b/packages/ui/src/components/ModelManager.vue
@@ -64,8 +64,15 @@
         </NButton>
       </template>
 
-      <div class="model-manager-content">
-        <NTabs v-model:value="activeTab" type="segment" size="small" animated class="model-manager-tabs">
+      <div class="model-manager-content" data-testid="model-manager-dialog">
+        <NTabs
+          v-model:value="activeTab"
+          data-testid="model-manager-tabs"
+          type="segment"
+          size="small"
+          animated
+          class="model-manager-tabs"
+        >
           <NTabPane name="text" :tab="t('modelManager.textModels')" />
           <NTabPane name="image" :tab="t('modelManager.imageModels')" />
           <NTabPane name="function" :tab="t('modelManager.functionModels')" />
diff --git a/packages/ui/src/components/SelectWithConfig.vue b/packages/ui/src/components/SelectWithConfig.vue
index 67efae52..d4da7e36 100644
--- a/packages/ui/src/components/SelectWithConfig.vue
+++ b/packages/ui/src/components/SelectWithConfig.vue
@@ -13,6 +13,7 @@
           <NText depth="3">{{ emptyText || t('model.select.noAvailableModels') }}</NText>
           <NButton
             v-if="shouldShowEmptyConfigCTA"
+            data-testid="select-empty-config-action"
             type="tertiary"
             size="small"
             ghost
diff --git a/packages/ui/src/components/basic-mode/BasicSystemWorkspace.vue b/packages/ui/src/components/basic-mode/BasicSystemWorkspace.vue
index b7f6b610..02f722bf 100644
--- a/packages/ui/src/components/basic-mode/BasicSystemWorkspace.vue
+++ b/packages/ui/src/components/basic-mode/BasicSystemWorkspace.vue
@@ -101,6 +101,7 @@
                         <template #model-select>
                             <SelectWithConfig
                                 v-model="selectedOptimizeModelKeyModel"
+                                data-testid="basic-system-model-select"
                                 :options="modelSelection.textModelOptions"
                                 :getPrimary="OptionAccessors.getPrimary"
                                 :getSecondary="OptionAccessors.getSecondary"
diff --git a/playwright.config.ts b/playwright.config.ts
index df10a660..6bc4ebb4 100644
--- a/playwright.config.ts
+++ b/playwright.config.ts
@@ -11,6 +11,30 @@ const E2E_PORT = process.env.E2E_PORT || 15555;
 const BASE_URL = `http://localhost:${E2E_PORT}`;
 const E2E_VCR_MODE = process.env.E2E_VCR_MODE || 'auto';
 const USE_VCR_PLACEHOLDER_KEYS = E2E_VCR_MODE === 'replay';
+const USE_EMPTY_MODEL_CONFIG = process.env.E2E_EMPTY_MODEL_CONFIG === '1';
+const MODEL_CREDENTIAL_ENV_KEYS = [
+  'VITE_ANTHROPIC_API_KEY',
+  'VITE_ARK_API_KEY',
+  'VITE_CF_ACCOUNT_ID',
+  'VITE_CF_API_TOKEN',
+  'VITE_CUSTOM_API_BASE_URL',
+  'VITE_CUSTOM_API_HEADERS',
+  'VITE_CUSTOM_API_KEY',
+  'VITE_CUSTOM_API_MODEL',
+  'VITE_DASHSCOPE_API_KEY',
+  'VITE_DEEPSEEK_API_KEY',
+  'VITE_GEMINI_API_KEY',
+  'VITE_GROK_API_KEY',
+  'VITE_MIMO_TOKEN_PLAN_API_KEY',
+  'VITE_MINIMAX_API_KEY',
+  'VITE_MODELSCOPE_API_KEY',
+  'VITE_OPENAI_API_KEY',
+  'VITE_OPENROUTER_API_KEY',
+  'VITE_SEEDREAM_API_KEY',
+  'VITE_SILICONFLOW_API_KEY',
+  'VITE_XAI_API_KEY',
+  'VITE_ZHIPU_API_KEY',
+] as const;
 
 export default defineConfig({
   // 测试目录
@@ -90,6 +114,9 @@ export default defineConfig({
     // 避免因本机缺少真实 key 而导致 UI 不渲染对应选项，从而无法命中既有 VCR fixtures。
     env: {
       ...process.env,
+      ...(USE_EMPTY_MODEL_CONFIG
+        ? Object.fromEntries(MODEL_CREDENTIAL_ENV_KEYS.map((key) => [key, '']))
+        : {}),
       ...(USE_VCR_PLACEHOLDER_KEYS
         ? {
             VITE_SILICONFLOW_API_KEY: process.env.VITE_SILICONFLOW_API_KEY || 'vcr',
diff --git a/scripts/e2e-groups.js b/scripts/e2e-groups.js
index 45e2f242..e6273ba6 100644
--- a/scripts/e2e-groups.js
+++ b/scripts/e2e-groups.js
@@ -1,4 +1,7 @@
 const groups = {
+  uiSmoke: [
+    'tests/e2e/regression/model-configuration-smoke.spec.ts',
+  ],
   gate: [
     'tests/e2e/workflows/p0-route-smoke.spec.ts',
     'tests/e2e/regression/root-route-bootstrap.spec.ts',
diff --git a/scripts/package-scripts.test.mjs b/scripts/package-scripts.test.mjs
index 64ecd219..9270985c 100644
--- a/scripts/package-scripts.test.mjs
+++ b/scripts/package-scripts.test.mjs
@@ -90,3 +90,18 @@ test('mcp-server bin points to a file that exists before build output is generat
     `Expected ${binTargetPath} to exist so pnpm can create the workspace bin shim during install`,
   )
 })
+
+test('desktop package includes every runtime window icon', () => {
+  const desktopPackage = readJson(path.join('packages', 'desktop', 'package.json'))
+  const packagedFiles = desktopPackage.build?.files ?? []
+
+  assert.ok(
+    packagedFiles.includes('icons/**/*'),
+    'Desktop build.files must include the icons directory used by main.js at runtime',
+  )
+
+  for (const iconName of ['app-icon.ico', 'app-icon.icns', 'app-icon.png']) {
+    const iconPath = path.join(process.cwd(), 'packages', 'desktop', 'icons', iconName)
+    assert.equal(fs.existsSync(iconPath), true, `Expected runtime icon ${iconPath} to exist`)
+  }
+})
diff --git a/scripts/pnpm-runner.js b/scripts/pnpm-runner.js
new file mode 100644
index 00000000..78be4375
--- /dev/null
+++ b/scripts/pnpm-runner.js
@@ -0,0 +1,39 @@
+const { spawn, spawnSync } = require('node:child_process')
+
+function getPnpmRunnerSpec(platform = process.platform, env = process.env) {
+  if (platform === 'win32') {
+    return {
+      command: env.ComSpec || env.COMSPEC || 'cmd.exe',
+      argsPrefix: ['/d', '/s', '/c', 'pnpm'],
+      shell: false,
+    }
+  }
+
+  return {
+    command: 'pnpm',
+    argsPrefix: [],
+    shell: false,
+  }
+}
+
+function spawnPnpm(args, options = {}) {
+  const { command, argsPrefix, shell } = getPnpmRunnerSpec()
+  return spawn(command, [...argsPrefix, ...args], {
+    shell,
+    ...options,
+  })
+}
+
+function spawnPnpmSync(args, options = {}) {
+  const { command, argsPrefix, shell } = getPnpmRunnerSpec()
+  return spawnSync(command, [...argsPrefix, ...args], {
+    shell,
+    ...options,
+  })
+}
+
+module.exports = {
+  getPnpmRunnerSpec,
+  spawnPnpm,
+  spawnPnpmSync,
+}
diff --git a/scripts/run-e2e-group.js b/scripts/run-e2e-group.js
index 720dc4be..d96e1273 100644
--- a/scripts/run-e2e-group.js
+++ b/scripts/run-e2e-group.js
@@ -1,7 +1,7 @@
 #!/usr/bin/env node
 
-const { spawnSync } = require('child_process')
 const { groups } = require('./e2e-groups')
+const { spawnPnpmSync } = require('./pnpm-runner')
 
 function runGroup(groupName, extraArgs = []) {
   const specs = groups[groupName]
@@ -17,11 +17,9 @@ function runGroup(groupName, extraArgs = []) {
   }
   console.log('')
 
-  const pnpmCommand = process.platform === 'win32' ? 'pnpm.cmd' : 'pnpm'
-  const result = spawnSync(pnpmCommand, ['exec', 'playwright', 'test', ...specs, ...extraArgs], {
+  const result = spawnPnpmSync(['exec', 'playwright', 'test', ...specs, ...extraArgs], {
     stdio: 'inherit',
-    env: process.env,
-    shell: process.platform === 'win32'
+    env: process.env
   })
 
   if (result.error) {
diff --git a/scripts/run-e2e-record.js b/scripts/run-e2e-record.js
index ee313abe..e5a7dd22 100644
--- a/scripts/run-e2e-record.js
+++ b/scripts/run-e2e-record.js
@@ -1,6 +1,6 @@
 #!/usr/bin/env node
 
-const { spawnSync } = require('child_process')
+const { spawnPnpmSync } = require('./pnpm-runner')
 
 const extraArgs = process.argv.slice(2)
 
@@ -10,14 +10,12 @@ if (extraArgs.length === 0) {
   process.exit(1)
 }
 
-const pnpmCommand = process.platform === 'win32' ? 'pnpm.cmd' : 'pnpm'
-const result = spawnSync(pnpmCommand, ['exec', 'playwright', 'test', ...extraArgs], {
+const result = spawnPnpmSync(['exec', 'playwright', 'test', ...extraArgs], {
   stdio: 'inherit',
   env: {
     ...process.env,
     E2E_VCR_MODE: 'record'
-  },
-  shell: process.platform === 'win32'
+  }
 })
 
 if (result.error) {
diff --git a/scripts/run-many.js b/scripts/run-many.js
index f4bca4d2..0b18063f 100644
--- a/scripts/run-many.js
+++ b/scripts/run-many.js
@@ -1,20 +1,6 @@
 #!/usr/bin/env node
 
-const { spawn } = require('node:child_process');
-
-function getRunnerSpec(platform = process.platform) {
-  if (platform === 'win32') {
-    return {
-      command: 'pnpm',
-      shell: true,
-    };
-  }
-
-  return {
-    command: 'pnpm',
-    shell: false,
-  };
-}
+const { getPnpmRunnerSpec, spawnPnpm } = require('./pnpm-runner');
 
 function parseArgs(argv) {
   let parallel = false;
@@ -40,10 +26,8 @@ function parseArgs(argv) {
 
 function runPackageScript(script, options = {}) {
   return new Promise((resolve, reject) => {
-    const { command, shell } = getRunnerSpec();
-    const child = spawn(command, ['run', script], {
+    const child = spawnPnpm(['run', script], {
       stdio: 'inherit',
-      shell,
       env: process.env,
       ...options,
     });
@@ -90,7 +74,7 @@ if (require.main === module) {
 }
 
 module.exports = {
-  getRunnerSpec,
+  getRunnerSpec: getPnpmRunnerSpec,
   main,
   parseArgs,
   runPackageScript,
diff --git a/scripts/run-many.test.mjs b/scripts/run-many.test.mjs
index badc19c8..b68265fc 100644
--- a/scripts/run-many.test.mjs
+++ b/scripts/run-many.test.mjs
@@ -21,13 +21,15 @@ test('parseArgs supports parallel aliases', () => {
   });
 });
 
-test('getRunnerSpec uses shell mode for Windows pnpm invocation', () => {
-  assert.deepEqual(getRunnerSpec('win32'), {
-    command: 'pnpm',
-    shell: true,
+test('getRunnerSpec avoids shell mode while preserving Windows pnpm compatibility', () => {
+  assert.deepEqual(getRunnerSpec('win32', { ComSpec: 'C:\\Windows\\System32\\cmd.exe' }), {
+    command: 'C:\\Windows\\System32\\cmd.exe',
+    argsPrefix: ['/d', '/s', '/c', 'pnpm'],
+    shell: false,
   });
   assert.deepEqual(getRunnerSpec('linux'), {
     command: 'pnpm',
+    argsPrefix: [],
     shell: false,
   });
 });
diff --git a/tests/e2e/regression/model-configuration-smoke.spec.ts b/tests/e2e/regression/model-configuration-smoke.spec.ts
new file mode 100644
index 00000000..edcfa781
--- /dev/null
+++ b/tests/e2e/regression/model-configuration-smoke.spec.ts
@@ -0,0 +1,34 @@
+import { test, expect } from '../fixtures'
+
+test.describe('Model configuration smoke', () => {
+  test('first-use model selector opens a manager with switchable text, image, and function tabs', async ({ page }) => {
+    await page.goto('/')
+    await expect(page.locator('[data-testid="workspace"][data-mode="basic-system"]')).toBeVisible({
+      timeout: 45000,
+    })
+
+    const modelSelect = page.getByTestId('basic-system-model-select')
+    await expect(modelSelect).toBeVisible()
+    await modelSelect.click()
+
+    const emptyConfigAction = page.getByTestId('select-empty-config-action')
+    await expect(emptyConfigAction).toBeVisible()
+    await expect(page.getByText(/暂无可用模型|No available models/)).toBeVisible()
+    await emptyConfigAction.click()
+
+    const dialog = page.getByTestId('model-manager-dialog')
+    await expect(dialog).toBeVisible()
+
+    const tabs = page.getByTestId('model-manager-tabs')
+    const tabItems = tabs.locator('.n-tabs-tab')
+    await expect(tabs).toContainText(/文本模型|Text Models/)
+    await expect(tabs).toContainText(/图像模型|Image Models/)
+    await expect(tabs).toContainText(/功能模型|Function Models/)
+
+    for (const tabLabel of [/图像模型|Image Models/, /功能模型|Function Models/, /文本模型|Text Models/]) {
+      const tab = tabItems.filter({ hasText: tabLabel }).first()
+      await tab.click()
+      await expect(tab).toHaveClass(/n-tabs-tab--active/)
+    }
+  })
+})