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/vite.config.mts

@@ -0,0 +1,43 @@
+/// <reference types='vitest' />
+import { defineConfig } from 'vite';
+import react from '@vitejs/plugin-react';
+import { nxViteTsPaths } from '@nx/vite/plugins/nx-tsconfig-paths.plugin';
+import { nxCopyAssetsPlugin } from '@nx/vite/plugins/nx-copy-assets.plugin';
+
+export default defineConfig(() => ({
+  root: import.meta.dirname,
+  cacheDir: '../../node_modules/.vite/apps/web',
+  server: {
+    port: 4200,
+    host: 'localhost',
+  },
+  preview: {
+    port: 4200,
+    host: 'localhost',
+  },
+  plugins: [react(), nxViteTsPaths(), nxCopyAssetsPlugin(['*.md'])],
+  // Uncomment this if you are using workers.
+  // worker: {
+  //   plugins: () => [ nxViteTsPaths() ],
+  // },
+  build: {
+    outDir: '../../dist/apps/web',
+    emptyOutDir: true,
+    reportCompressedSize: true,
+    commonjsOptions: {
+      transformMixedEsModules: true,
+    },
+  },
+  test: {
+    name: 'web',
+    watch: false,
+    globals: true,
+    environment: 'jsdom',
+    include: ['{src,tests}/**/*.{test,spec}.{js,mjs,cjs,ts,mts,cts,jsx,tsx}'],
+    reporters: ['default'],
+    coverage: {
+      reportsDirectory: '../../coverage/apps/web',
+      provider: 'v8' as const,
+    },
+  },
+}));