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/form-validation.instructions.md

@@ -0,0 +1,54 @@
+# Form Validation
+
+**Include when:** Page has forms or input fields
+
+---
+
+## Validation Rules
+
+| Field | Rule | Error Code | Error Message |
+|-------|------|------------|---------------|
+| `{field-name}` | {validation-rule} | `{ERR_CODE}` | {message} |
+
+---
+
+## Error Messages
+
+| Error Code | Trigger | EN | SE | Recovery |
+|------------|---------|-----|-----|----------|
+| `ERR_001` | {When occurs} | "{English}" | "{Swedish}" | {How to fix} |
+
+---
+
+## Form States
+
+### Valid State
+- All fields pass validation
+- Submit button enabled
+- No error indicators
+
+### Invalid State
+- Error fields highlighted
+- Error messages visible
+- Submit button disabled until fixed
+
+### Submitting State
+- Submit button shows loading
+- Fields disabled
+- Cancel option available
+
+---
+
+## Field Specifications
+
+### {Field Name}
+
+| Property | Value |
+|----------|-------|
+| **OBJECT ID** | `{form-field-id}` |
+| Type | {text / email / password / select / etc.} |
+| Required | {yes / no} |
+| Placeholder EN | "{Placeholder text}" |
+| Placeholder SE | "{Swedish placeholder}" |
+| Validation | {rules} |
+| Error Message | {message} |