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>

.claude/skills/bmad-agent-builder/assets/CAPABILITIES-template.md

@@ -0,0 +1,30 @@
+# Capabilities
+
+## Built-in
+
+| Code | Name | Description | Source |
+|------|------|-------------|--------|
+{capabilities-table}
+
+{if-evolvable}
+## Learned
+
+_Capabilities added by the owner over time. Prompts live in `capabilities/`._
+
+| Code | Name | Description | Source | Added |
+|------|------|-------------|--------|-------|
+
+## How to Add a Capability
+
+Tell me "I want you to be able to do X" and we'll create it together.
+I'll write the prompt, save it to `capabilities/`, and register it here.
+Next session, I'll know how. Load `./references/capability-authoring.md` for the full creation framework.
+{/if-evolvable}
+
+## Tools
+
+Prefer crafting your own tools over depending on external ones. A script you wrote and saved is more reliable than an external API. Use the file system creatively.
+
+### User-Provided Tools
+
+_MCP servers, APIs, or services the owner has made available. Document them here._