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>

_bmad/wds/config.yaml

@@ -0,0 +1,20 @@
+# WDS Module Configuration
+# Generated by BMAD installer
+# Version: 6.7.1
+# Date: 2026-05-20T13:44:55.562Z
+
+project_knowledge: "{project-root}/docs"
+project_type: digital_product
+design_artifacts: "{project-root}/design-artifacts"
+design_system_mode: none
+methodology_version: wds-v6
+product_languages:
+  - en
+design_experience: intermediate
+
+# Core Configuration Values
+user_name: Julian
+project_name: sar
+communication_language: Portugues Brasil
+document_output_language: Portugues Brasil
+output_folder: "{project-root}/_bmad-output"