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/bmad-testarch-nfr/steps-c/step-04b-subagent-performance.md

@@ -0,0 +1,84 @@
+---
+name: 'step-04b-subagent-performance'
+description: 'Subagent: Performance NFR evidence audit'
+subagent: true
+outputFile: '/tmp/tea-nfr-performance-{{timestamp}}.json'
+---
+
+# Subagent 4B: Performance NFR Evidence Audit
+
+## SUBAGENT CONTEXT
+
+This is an **isolated subagent** running in parallel with other NFR domain evidence audits.
+
+**Your task:** Assess PERFORMANCE NFR domain only.
+
+---
+
+## SUBAGENT TASK
+
+### 1. Performance Evidence Audit Categories
+
+**A) Response Times:**
+
+- API response times (<200ms target)
+- Page load times (<2s target)
+- Time to interactive (<3s target)
+
+**B) Throughput:**
+
+- Requests per second capacity
+- Concurrent user support
+- Database query performance
+
+**C) Resource Usage:**
+
+- Memory consumption
+- CPU utilization
+- Database connection pooling
+
+**D) Optimization:**
+
+- Caching strategies
+- CDN usage
+- Code splitting/lazy loading
+- Database indexing
+
+---
+
+## OUTPUT FORMAT
+
+```json
+{
+  "domain": "performance",
+  "risk_level": "LOW",
+  "findings": [
+    {
+      "category": "Response Times",
+      "status": "PASS",
+      "description": "API endpoints respond in <150ms (P95)",
+      "evidence": ["Load testing results show 140ms P95"],
+      "recommendations": []
+    },
+    {
+      "category": "Caching",
+      "status": "CONCERN",
+      "description": "No CDN for static assets",
+      "evidence": ["Static files served from origin"],
+      "recommendations": ["Implement CDN (CloudFront/Cloudflare)", "Cache static assets for 1 year"]
+    }
+  ],
+  "compliance": {
+    "SLA_99.9": "PASS",
+    "SLA_99.99": "CONCERN"
+  },
+  "priority_actions": ["Implement CDN for static assets", "Add database query caching for frequent reads"],
+  "summary": "Performance is acceptable with minor optimization opportunities"
+}
+```
+
+---
+
+## EXIT CONDITION
+
+Subagent completes when JSON output written to temp file.