chore: initial monorepo scaffold + WDS Phase 1+2 artifacts

- Nx 22.7 monorepo (pnpm 11.1, TypeScript 5.9, Node 24)
- apps/api: NestJS 11 (CJS conforme CODING-RULES.md PGD-DB-004)
- apps/web: React 19 + Vite 8 (ESM)
- libs/shared/api-interface: Zod contract base
- Docker Compose dev: Postgres 18, Valkey 8, MinIO, Mailpit
- WDS artifacts:
  - design-artifacts/A-Product-Brief/ (5 docs canônicos + 16 dialogs)
  - design-artifacts/B-Trigger-Map/ (hub + 4 personas + feature impact)
- Stack canon: STACK.md v2.2 + CODING-RULES.md v2.0 + brand.md
- AGENTS.md + README.md como entrada para devs/agentes

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/web-e2e/playwright.config.ts

@@ -0,0 +1,68 @@
+import { defineConfig, devices } from '@playwright/test';
+import { nxE2EPreset } from '@nx/playwright/preset';
+import { workspaceRoot } from '@nx/devkit';
+
+// For CI, you may want to set BASE_URL to the deployed application.
+const baseURL = process.env['BASE_URL'] || 'http://localhost:4200';
+
+/**
+ * Read environment variables from file.
+ * https://github.com/motdotla/dotenv
+ */
+// require('dotenv').config();
+
+/**
+ * See https://playwright.dev/docs/test-configuration.
+ */
+export default defineConfig({
+  ...nxE2EPreset(__filename, { testDir: './src' }),
+  /* Shared settings for all the projects below. See https://playwright.dev/docs/api/class-testoptions. */
+  use: {
+    baseURL,
+    /* Collect trace when retrying the failed test. See https://playwright.dev/docs/trace-viewer */
+    trace: 'on-first-retry',
+  },
+  /* Run your local dev server before starting the tests */
+  webServer: {
+    command: 'pnpm exec nx run web:preview',
+    url: 'http://localhost:4200',
+    reuseExistingServer: true,
+    cwd: workspaceRoot,
+  },
+  projects: [
+    {
+      name: 'chromium',
+      use: { ...devices['Desktop Chrome'] },
+    },
+
+    {
+      name: 'firefox',
+      use: { ...devices['Desktop Firefox'] },
+    },
+
+    {
+      name: 'webkit',
+      use: { ...devices['Desktop Safari'] },
+    },
+
+    // Uncomment for mobile browsers support
+    /* {
+      name: 'Mobile Chrome',
+      use: { ...devices['Pixel 5'] },
+    },
+    {
+      name: 'Mobile Safari',
+      use: { ...devices['iPhone 12'] },
+    }, */
+
+    // Uncomment for branded browsers
+    /* {
+      name: 'Microsoft Edge',
+      use: { ...devices['Desktop Edge'], channel: 'msedge' },
+    },
+    {
+      name: 'Google Chrome',
+      use: { ...devices['Desktop Chrome'], channel: 'chrome' },
+    } */
+  ],
+});