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>

.agents/skills/wds-4-ux-design/templates/instructions/data-api.instructions.md

@@ -0,0 +1,69 @@
+# Data & API Requirements
+
+**Include when:** Page requires data from APIs or external sources
+
+---
+
+## Data Sources
+
+| Data Element | Source | Type | Required | Notes |
+|--------------|--------|------|----------|-------|
+| `{data-field}` | {API / static / localStorage} | {string / number / array} | {yes/no} | {notes} |
+
+---
+
+## API Endpoints
+
+### {Endpoint Name}
+
+| Property | Value |
+|----------|-------|
+| Method | {GET / POST / PUT / DELETE} |
+| Path | `/api/{path}` |
+| Purpose | {What this endpoint does} |
+| Auth | {Required / Optional / None} |
+
+**Request:**
+```json
+{
+  "field": "value"
+}
+```
+
+**Response (Success):**
+```json
+{
+  "data": {}
+}
+```
+
+**Response (Error):**
+```json
+{
+  "error": "message",
+  "code": "ERR_XXX"
+}
+```
+
+**Error Codes:**
+| Code | Meaning | User Message |
+|------|---------|--------------|
+| `{code}` | {technical meaning} | {user-friendly message} |
+
+---
+
+## Loading States
+
+| State | Duration | UI |
+|-------|----------|-----|
+| Initial load | {expected ms} | {skeleton / spinner / etc.} |
+| Refresh | {expected ms} | {indicator type} |
+| Background | {expected ms} | {silent / toast} |
+
+---
+
+## Caching Strategy
+
+| Data | Cache Duration | Invalidation |
+|------|----------------|--------------|
+| {data type} | {duration} | {when to refresh} |