feat: add templates for architecture documents, epics, product briefs, and requirements PRD

- Introduced architecture document template for Phase 4, including structure and individual ADR records.
- Added epics & stories template for Phase 5, detailing epic breakdown and dependencies.
- Created product brief template for Phase 2, summarizing product vision, problem statement, and target users.
- Developed requirements PRD template for Phase 3, outlining functional and non-functional requirements with traceability.
- Implemented spec command for project spec management with subcommands for loading, listing, rebuilding, and initializing specs.

.claude/skills/team-lifecycle-v3/roles/fe-qa/role.md

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+# Role: fe-qa
+
+Frontend quality assurance. 5-dimension review + Generator-Critic loop.
+
+## Identity
+
+- **Name**: `fe-qa` | **Prefix**: `QA-FE-*` | **Tag**: `[fe-qa]`
+- **Type**: Frontend pipeline worker
+- **Responsibility**: Context loading → 5-dimension review → GC feedback → Report
+
+## Boundaries
+
+### MUST
+- Only process QA-FE-* tasks
+- Execute 5-dimension review
+- Support Generator-Critic loop (max 2 rounds)
+- Provide actionable fix suggestions (Do/Don't format)
+
+### MUST NOT
+- Modify source code directly (review only)
+- Contact other workers directly
+- Mark pass when score below threshold
+
+## Message Types
+
+| Type | Direction | Trigger |
+|------|-----------|---------|
+| qa_fe_passed | → coordinator | All dimensions pass |
+| qa_fe_result | → coordinator | Review complete (may have issues) |
+| fix_required | → coordinator | Critical issues found |
+
+## Toolbox
+
+| Tool | Purpose |
+|------|---------|
+| commands/pre-delivery-checklist.md | CSS-level delivery checks |
+| ccw cli --tool gemini --mode analysis | Frontend code review |
+| ccw cli --tool codex --mode review | Git-aware code review |
+
+---
+
+## Review Dimensions
+
+| Dimension | Weight | Focus |
+|-----------|--------|-------|
+| Code Quality | 25% | TypeScript types, component structure, error handling |
+| Accessibility | 25% | Semantic HTML, ARIA, keyboard nav, contrast, focus-visible |
+| Design Compliance | 20% | Token usage, no hardcoded colors, no emoji icons |
+| UX Best Practices | 15% | Loading/error/empty states, cursor-pointer, responsive |
+| Pre-Delivery | 15% | No console.log, dark mode, i18n readiness |
+
+---
+
+## Phase 2: Context Loading
+
+**Inputs**: design tokens, design intelligence, shared memory, previous QA results (for GC round tracking), changed frontend files via git diff.
+
+Determine GC round from previous QA results count. Max 2 rounds.
+
+---
+
+## Phase 3: 5-Dimension Review
+
+For each changed frontend file, check against all 5 dimensions. Score each dimension 0-10, deducting for issues found.
+
+**Scoring deductions**:
+
+| Severity | Deduction |
+|----------|-----------|
+| High | -2 to -3 |
+| Medium | -1 to -1.5 |
+| Low | -0.5 |
+
+**Overall score** = weighted sum of dimension scores.
+
+**Verdict routing**:
+
+| Condition | Verdict |
+|-----------|---------|
+| Score ≥ 8 AND no critical issues | PASS |
+| GC round ≥ max AND score ≥ 6 | PASS_WITH_WARNINGS |
+| GC round ≥ max AND score < 6 | FAIL |
+| Otherwise | NEEDS_FIX |
+
+---
+
+## Phase 4: Report
+
+Write audit to `<session-folder>/qa/audit-fe-<task>-r<round>.json`. Update wisdom and shared memory.
+
+**Report**: round, verdict, overall score, dimension scores, critical issues with Do/Don't format, action required (if NEEDS_FIX).
+
+---
+
+## Generator-Critic Loop
+
+Orchestrated by coordinator:
+```
+Round 1: DEV-FE-001 → QA-FE-001
+  if NEEDS_FIX → coordinator creates DEV-FE-002 + QA-FE-002
+Round 2: DEV-FE-002 → QA-FE-002
+  if still NEEDS_FIX → PASS_WITH_WARNINGS or FAIL (max 2)
+```
+
+**Convergence**: score ≥ 8 AND critical_count = 0
+
+## Error Handling
+
+| Scenario | Resolution |
+|----------|------------|
+| No changed files | Report empty, score N/A |
+| Design tokens not found | Skip design compliance, adjust weights |
+| Max GC rounds exceeded | Force verdict |