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/wds-4-ux-design/data/scenario-init/examples/ecommerce-example.md

@@ -0,0 +1,64 @@
+# Example: E-commerce (Sales Goal)
+
+**Transparent purchase journey**
+
+---
+
+## The 5 Questions
+
+### 1. Core Feature
+
+```
+"Transparent pricing breakdown - shows all costs upfront"
+```
+
+### 2. Entry Point
+
+```
+"Google search 'affordable [product]'"
+```
+
+### 3. Mental State
+
+```
+"Anxious about hidden costs, need transparency before committing"
+```
+
+### 4. Mutual Success
+
+```
+Business: Purchase completed
+User: Confident in value, no surprise costs
+```
+
+### 5. Shortest Path
+
+```
+Google → Product page → Transparent pricing →
+Add to cart → Checkout → Confirmation
+```
+
+---
+
+## Scenario Captured
+
+```
+SCENARIO: Transparent Purchase Journey
+
+START: Google search (anxious about hidden costs)
+END: Purchase completed (confident in value)
+
+CRITICAL PATH:
+1. Product page → See product + upfront pricing
+2. Pricing breakdown → Understand all costs
+3. Add to cart → Commit to purchase
+4. Checkout → Complete transaction
+5. Confirmation → Confidence reinforced
+
+BUSINESS GOAL: Product sale
+USER GOAL: Confident purchase, no surprises
+```
+
+---
+
+[← Back to Guide](../00-SCENARIO-INIT-GUIDE.md)