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+# E2E Test Foundation Implementation Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** Build a reusable Playwright E2E foundation and cover the model multidimensional pricing save/reload workflow.
+
+**Architecture:** Playwright runs from `web/`, starts the React app through Vite, and starts the Go backend through a global setup helper. The backend uses a temporary SQLite database and a fixed test session secret so each E2E run is isolated and repeatable.
+
+**Tech Stack:** Playwright, Bun, React/Vite, Go backend, SQLite.
+
+---
+
+## File Structure
+
+- Create `web/playwright.config.js`: Playwright configuration, projects, web server, artifacts, and env wiring.
+- Create `web/e2e/global-setup.js`: start backend with temporary SQLite and wait for readiness.
+- Create `web/e2e/global-teardown.js`: stop backend process and remove temporary database directory.
+- Create `web/e2e/auth.setup.js`: log in as `root / 123456` and save storage state.
+- Create `web/e2e/model-pricing.spec.js`: first real E2E workflow for model multidimensional pricing.
+- Create `web/e2e/utils/process.js`: cross-platform process spawn/kill helpers.
+- Create `web/e2e/utils/wait.js`: HTTP polling helper.
+- Modify `web/package.json`: add E2E scripts.
+- Modify `web/src/components/settings/RatioSetting.jsx`: add `data-testid` to the model pricing tab content.
+- Modify `web/src/pages/Setting/Operation/ModelPricing/index.jsx`: add stable selectors for the page, add button, search input, and table.
+- Modify `web/src/pages/Setting/Operation/ModelPricing/Editor.jsx`: add stable selectors for model input, save, generator, and JSON editor.
+- Modify `web/src/pages/Setting/Operation/ModelPricing/DimensionEditor.jsx`: add stable selectors for add dimension and editable cells.
+- Modify `web/src/pages/Setting/Operation/ModelPricing/GeneratorModal.jsx`: add stable selectors for base price, add ratio, apply, and ratio inputs.
+
+## Task 1: Add Playwright Scripts
+
+**Files:**
+- Modify: `web/package.json`
+
+- [ ] **Step 1: Add E2E scripts**
+
+Add these entries inside `scripts`:
+
+```json
+"e2e": "playwright test",
+"e2e:ui": "playwright test --ui",
+"e2e:headed": "playwright test --headed",
+"e2e:install": "playwright install chromium"
+```
+
+- [ ] **Step 2: Verify package scripts parse**
+
+Run:
+
+```powershell
+cd web
+bun pm pkg get scripts.e2e
+```
+
+Expected output includes:
+
+```text
+"playwright test"
+```
+
+- [ ] **Step 3: Commit**
+
+```powershell
+git add web/package.json
+git commit -m "test: add e2e scripts"
+```
+
+## Task 2: Add Backend Process Helpers
+
+**Files:**
+- Create: `web/e2e/utils/process.js`
+- Create: `web/e2e/utils/wait.js`
+
+- [ ] **Step 1: Create process helper**
+
+Create `web/e2e/utils/process.js`:
+
+```js
+import { spawn } from 'node:child_process';
+
+export function startProcess(command, args, options = {}) {
+  const child = spawn(command, args, {
+    cwd: options.cwd,
+    env: { ...process.env, ...(options.env || {}) },
+    shell: process.platform === 'win32',
+    stdio: ['ignore', 'pipe', 'pipe'],
+  });
+
+  const output = [];
+  child.stdout.on('data', (chunk) => output.push(chunk.toString()));
+  child.stderr.on('data', (chunk) => output.push(chunk.toString()));
+
+  child.once('exit', (code) => {
+    if (code !== null && code !== 0) {
+      output.push(`\nprocess exited with code ${code}\n`);
+    }
+  });
+
+  return { child, output };
+}
+
+export async function stopProcess(child) {
+  if (!child || child.killed) return;
+  await new Promise((resolve) => {
+    child.once('exit', resolve);
+    child.kill(process.platform === 'win32' ? undefined : 'SIGTERM');
+    setTimeout(() => {
+      if (!child.killed) child.kill('SIGKILL');
+      resolve();
+    }, 5000).unref();
+  });
+}
+```
+
+- [ ] **Step 2: Create HTTP wait helper**
+
+Create `web/e2e/utils/wait.js`:
+
+```js
+export async function waitForHttp(url, options = {}) {
+  const timeoutMs = options.timeoutMs || 60000;
+  const intervalMs = options.intervalMs || 500;
+  const start = Date.now();
+  let lastError;
+
+  while (Date.now() - start < timeoutMs) {
+    try {
+      const response = await fetch(url, { cache: 'no-store' });
+      if (response.ok) return response;
+      lastError = new Error(`HTTP ${response.status}`);
+    } catch (error) {
+      lastError = error;
+    }
+    await new Promise((resolve) => setTimeout(resolve, intervalMs));
+  }
+
+  throw new Error(`Timed out waiting for ${url}: ${lastError?.message || 'no response'}`);
+}
+```
+
+- [ ] **Step 3: Commit**
+
+```powershell
+git add web/e2e/utils/process.js web/e2e/utils/wait.js
+git commit -m "test: add e2e process helpers"
+```
+
+## Task 3: Add Playwright Runtime Setup
+
+**Files:**
+- Create: `web/e2e/global-setup.js`
+- Create: `web/e2e/global-teardown.js`
+- Create: `web/playwright.config.js`
+
+- [ ] **Step 1: Create global setup**
+
+Create `web/e2e/global-setup.js`:
+
+```js
+import fs from 'node:fs/promises';
+import os from 'node:os';
+import path from 'node:path';
+import { startProcess } from './utils/process.js';
+import { waitForHttp } from './utils/wait.js';
+
+const statePath = path.resolve('.playwright/e2e-state.json');
+
+export default async function globalSetup() {
+  const repoRoot = path.resolve('..');
+  const backendPort = process.env.E2E_BACKEND_PORT || '3001';
+  const tempDir = await fs.mkdtemp(path.join(os.tmpdir(), 'new-api-e2e-'));
+  const sqlitePath = path.join(tempDir, 'e2e.db');
+
+  await fs.mkdir(path.dirname(statePath), { recursive: true });
+
+  const backend = startProcess('go', ['run', 'main.go'], {
+    cwd: repoRoot,
+    env: {
+      PORT: backendPort,
+      SQLITE_PATH: `${sqlitePath}?_busy_timeout=30000`,
+      SESSION_SECRET: 'e2e_session_secret_for_local_tests',
+    },
+  });
+
+  try {
+    await waitForHttp(`http://127.0.0.1:${backendPort}/api/setup`, { timeoutMs: 90000 });
+  } catch (error) {
+    console.error(backend.output.join(''));
+    backend.child.kill();
+    throw error;
+  }
+
+  await fs.writeFile(
+    statePath,
+    JSON.stringify({
+      backendPid: backend.child.pid,
+      tempDir,
+      backendPort,
+    }),
+    'utf8',
+  );
+}
+```
+
+- [ ] **Step 2: Create global teardown**
+
+Create `web/e2e/global-teardown.js`:
+
+```js
+import fs from 'node:fs/promises';
+import path from 'node:path';
+
+const statePath = path.resolve('.playwright/e2e-state.json');
+
+export default async function globalTeardown() {
+  try {
+    const state = JSON.parse(await fs.readFile(statePath, 'utf8'));
+    if (state.backendPid) {
+      try {
+        process.kill(state.backendPid);
+      } catch {}
+    }
+    if (state.tempDir) {
+      await fs.rm(state.tempDir, { recursive: true, force: true });
+    }
+    await fs.rm(statePath, { force: true });
+  } catch {}
+}
+```
+
+- [ ] **Step 3: Create Playwright config**
+
+Create `web/playwright.config.js`:
+
+```js
+import { defineConfig, devices } from '@playwright/test';
+
+const frontendPort = process.env.E2E_FRONTEND_PORT || '5173';
+const backendPort = process.env.E2E_BACKEND_PORT || '3001';
+
+export default defineConfig({
+  testDir: './e2e',
+  globalSetup: './e2e/global-setup.js',
+  globalTeardown: './e2e/global-teardown.js',
+  timeout: 60_000,
+  expect: { timeout: 10_000 },
+  fullyParallel: false,
+  retries: process.env.CI ? 1 : 0,
+  reporter: [['list'], ['html', { open: 'never' }]],
+  use: {
+    baseURL: `http://127.0.0.1:${frontendPort}`,
+    trace: 'retain-on-failure',
+    screenshot: 'only-on-failure',
+    video: 'off',
+  },
+  webServer: {
+    command: `bun run dev -- --host 127.0.0.1 --port ${frontendPort}`,
+    url: `http://127.0.0.1:${frontendPort}`,
+    reuseExistingServer: !process.env.CI,
+    env: {
+      VITE_REACT_APP_SERVER_URL: `http://127.0.0.1:${backendPort}`,
+    },
+    timeout: 90_000,
+  },
+  projects: [
+    { name: 'setup', testMatch: /auth\.setup\.js/ },
+    {
+      name: 'chromium',
+      use: {
+        ...devices['Desktop Chrome'],
+        storageState: 'e2e/.auth/root.json',
+      },
+      dependencies: ['setup'],
+      testIgnore: /auth\.setup\.js/,
+    },
+  ],
+});
+```
+
+- [ ] **Step 4: Run Playwright list to verify config loads**
+
+Run:
+
+```powershell
+cd web
+bunx playwright test --list
+```
+
+Expected: command exits successfully and lists no feature tests yet, or only setup if Task 4 has already been completed.
+
+- [ ] **Step 5: Commit**
+
+```powershell
+git add web/playwright.config.js web/e2e/global-setup.js web/e2e/global-teardown.js
+git commit -m "test: add e2e runtime setup"
+```
+
+## Task 4: Add Login Storage Setup
+
+**Files:**
+- Create: `web/e2e/auth.setup.js`
+
+- [ ] **Step 1: Create auth setup test**
+
+Create `web/e2e/auth.setup.js`:
+
+```js
+import { test, expect } from '@playwright/test';
+import fs from 'node:fs/promises';
+
+test('authenticate as root', async ({ page }) => {
+  await fs.mkdir('e2e/.auth', { recursive: true });
+  await page.goto('/login');
+
+  await page.getByPlaceholder(/用户名|username/i).fill('root');
+  await page.getByPlaceholder(/密码|password/i).fill('123456');
+
+  const loginResponse = page.waitForResponse((response) =>
+    response.url().includes('/api/user/login') && response.request().method() === 'POST',
+  );
+  await page.getByRole('button', { name: /登录|login/i }).click();
+  const response = await loginResponse;
+  expect(response.ok()).toBeTruthy();
+
+  await expect(page).toHaveURL(/\/console/);
+  await page.context().storageState({ path: 'e2e/.auth/root.json' });
+});
+```
+
+- [ ] **Step 2: Run setup only**
+
+Run:
+
+```powershell
+cd web
+bunx playwright test --project=setup
+```
+
+Expected: setup test passes and creates `web/e2e/.auth/root.json`.
+
+- [ ] **Step 3: Ignore generated auth state**
+
+If `web/e2e/.auth/root.json` appears in `git status`, add this to `.gitignore`:
+
+```gitignore
+web/e2e/.auth/
+web/.playwright/
+web/playwright-report/
+web/test-results/
+```
+
+- [ ] **Step 4: Commit**
+
+```powershell
+git add web/e2e/auth.setup.js .gitignore
+git commit -m "test: add e2e root login setup"
+```
+
+## Task 5: Add Stable Selectors To Model Pricing UI
+
+**Files:**
+- Modify: `web/src/components/settings/RatioSetting.jsx`
+- Modify: `web/src/pages/Setting/Operation/ModelPricing/index.jsx`
+- Modify: `web/src/pages/Setting/Operation/ModelPricing/Editor.jsx`
+- Modify: `web/src/pages/Setting/Operation/ModelPricing/DimensionEditor.jsx`
+- Modify: `web/src/pages/Setting/Operation/ModelPricing/GeneratorModal.jsx`
+
+- [ ] **Step 1: Add tab content selector**
+
+In `web/src/components/settings/RatioSetting.jsx`, wrap the model pricing tab content:
+
+```jsx
+<Tabs.TabPane tab={t('模型多维计费')} itemKey='model_pricing'>
+  <div data-testid='model-pricing-tab'>
+    <ModelPricing />
+  </div>
+</Tabs.TabPane>
+```
+
+- [ ] **Step 2: Add page-level selectors**
+
+In `web/src/pages/Setting/Operation/ModelPricing/index.jsx`, use these props:
+
+```jsx
+<Card style={{ marginTop: 10 }} data-testid='model-pricing-page'>
+```
+
+```jsx
+<Button data-testid='model-pricing-add-model' icon={<Plus size={16} />} type='primary' onClick={() => setEditingModel('')}>
+```
+
+```jsx
+<Input data-testid='model-pricing-search' placeholder={t('搜索模型')} value={keyword} onChange={setKeyword} style={{ width: 280 }} />
+```
+
+```jsx
+<Table data-testid='model-pricing-table' columns={columns} dataSource={data} rowKey='model' pagination={{ pageSize: 10 }} loading={loading} />
+```
+
+- [ ] **Step 3: Add editor selectors**
+
+In `web/src/pages/Setting/Operation/ModelPricing/Editor.jsx`, add:
+
+```jsx
+<SideSheet
+  data-testid='model-pricing-editor'
+```
+
+```jsx
+<Button data-testid='model-pricing-save' type='primary' icon={<Save size={16} />} onClick={save} loading={saving}>
+```
+
+```jsx
+<Input data-testid='model-pricing-model-name' prefix={t('模型')} value={name} onChange={setName} style={{ width: 260 }} disabled={Boolean(modelName)} />
+```
+
+```jsx
+<Button data-testid='model-pricing-open-generator' icon={<Wand2 size={16} />} onClick={() => setGeneratorVisible(true)}>
+```
+
+```jsx
+<TextArea data-testid='model-pricing-json-editor' value={jsonText} onChange={setJsonText} autosize={{ minRows: 18, maxRows: 28 }} />
+```
+
+- [ ] **Step 4: Add dimension selectors**
+
+In `web/src/pages/Setting/Operation/ModelPricing/DimensionEditor.jsx`, add indexed `data-testid` attributes to editable inputs:
+
+```jsx
+<Input data-testid={`dimension-key-${index}`} value={value} onChange={(key) => update(index, { key })} />
+```
+
+```jsx
+<Input
+  data-testid={`dimension-source-path-${index}`}
+  value={parsed.path}
+  placeholder={parsed.sourceType === DIMENSION_SOURCE_TYPES.advanced ? 'request.options.size' : 'duration'}
+  onChange={(path) => update(index, { source: composeDimensionSource(parsed.sourceType, path) })}
+/>
+```
+
+```jsx
+<Button data-testid='dimension-add' icon={<Plus size={16} />} onClick={add}>
+```
+
+- [ ] **Step 5: Add generator selectors**
+
+In `web/src/pages/Setting/Operation/ModelPricing/GeneratorModal.jsx`, add:
+
+```jsx
+<Modal
+  data-testid='model-pricing-generator'
+```
+
+```jsx
+<InputNumber
+  data-testid='generator-base-price'
+```
+
+```jsx
+<Button data-testid='generator-add-ratio' icon={<Plus size={16} />} onClick={addEntry}>
+```
+
+```jsx
+<Button data-testid='generator-apply' type='primary' onClick={apply} disabled={preview.rows.length === 0}>
+```
+
+- [ ] **Step 6: Run frontend build**
+
+Run:
+
+```powershell
+cd web
+bun run build
+```
+
+Expected: build exits 0. Existing Vite chunk warnings are acceptable.
+
+- [ ] **Step 7: Commit**
+
+```powershell
+git add web/src/components/settings/RatioSetting.jsx web/src/pages/Setting/Operation/ModelPricing/index.jsx web/src/pages/Setting/Operation/ModelPricing/Editor.jsx web/src/pages/Setting/Operation/ModelPricing/DimensionEditor.jsx web/src/pages/Setting/Operation/ModelPricing/GeneratorModal.jsx
+git commit -m "test: add model pricing e2e selectors"
+```
+
+## Task 6: Add Model Pricing E2E Workflow
+
+**Files:**
+- Create: `web/e2e/model-pricing.spec.js`
+
+- [ ] **Step 1: Write the E2E test**
+
+Create `web/e2e/model-pricing.spec.js`:
+
+```js
+import { test, expect } from '@playwright/test';
+
+test('model multidimensional pricing can be saved and loaded', async ({ page, request }) => {
+  const modelName = `e2e-video-pricing-model-${Date.now()}`;
+
+  await page.goto('/console/setting?tab=ratio');
+  await page.getByTestId('model-pricing-tab').waitFor();
+  await page.getByTestId('model-pricing-add-model').click();
+  await page.getByTestId('model-pricing-editor').waitFor();
+
+  await page.getByTestId('model-pricing-model-name').fill(modelName);
+
+  await page.getByTestId('dimension-key-0').fill('duration');
+  await page.getByTestId('dimension-source-path-0').fill('duration');
+  await page.getByTestId('dimension-add').click();
+  await page.getByTestId('dimension-key-1').fill('quality');
+  await page.getByTestId('dimension-source-path-1').fill('quality');
+
+  await page.getByTestId('model-pricing-open-generator').click();
+  await page.getByTestId('model-pricing-generator').waitFor();
+  await page.getByTestId('generator-base-price').fill('0.2');
+  await page.getByTestId('generator-apply').click();
+
+  const saveResponsePromise = page.waitForResponse((response) =>
+    response.url().includes(`/api/option/model_pricing/${encodeURIComponent(modelName)}`) &&
+    response.request().method() === 'PUT',
+  );
+  await page.getByTestId('model-pricing-save').click();
+  const saveResponse = await saveResponsePromise;
+  expect(saveResponse.ok()).toBeTruthy();
+  const saveBody = await saveResponse.json();
+  expect(saveBody.success).toBe(true);
+
+  await page.reload();
+  await page.getByTestId('model-pricing-search').fill(modelName);
+  await expect(page.getByTestId('model-pricing-table')).toContainText(modelName);
+
+  const apiResponse = await request.get(`/api/option/model_pricing/${encodeURIComponent(modelName)}`);
+  expect(apiResponse.ok()).toBeTruthy();
+  const body = await apiResponse.json();
+  expect(body.success).toBe(true);
+  expect(body.data.schema_version).toBe(1);
+  expect(body.data.scope).toBe('model');
+  expect(body.data.dimensions.map((item) => item.key)).toEqual(['duration', 'quality']);
+  expect(body.data.table.length).toBeGreaterThan(0);
+});
+```
+
+- [ ] **Step 2: Run E2E**
+
+Run:
+
+```powershell
+cd web
+bun run e2e
+```
+
+Expected: setup project logs in, chromium project runs the model pricing workflow, and all tests pass.
+
+- [ ] **Step 3: Commit**
+
+```powershell
+git add web/e2e/model-pricing.spec.js
+git commit -m "test: cover model pricing e2e workflow"
+```
+
+## Task 7: Final Verification
+
+**Files:**
+- No new files.
+
+- [ ] **Step 1: Run model pricing unit tests**
+
+Run:
+
+```powershell
+cd web
+bun test src/pages/Setting/Operation/ModelPricing/pricingConfig.test.js
+```
+
+Expected: all tests pass.
+
+- [ ] **Step 2: Run frontend build**
+
+Run:
+
+```powershell
+cd web
+bun run build
+```
+
+Expected: build exits 0. Existing chunk warnings are acceptable.
+
+- [ ] **Step 3: Run E2E**
+
+Run:
+
+```powershell
+cd web
+bun run e2e
+```
+
+Expected: all Playwright projects pass.
+
+- [ ] **Step 4: Review status**
+
+Run:
+
+```powershell
+git status --short --branch
+git log --oneline -5
+```
+
+Expected: only intentional changes remain uncommitted, or all E2E commits are present if each task committed successfully.