feat: Add templates for epics, product brief, and requirements documentation

- Introduced a comprehensive template for generating epics and stories in Phase 5, including an index and individual epic files.
- Created a product brief template for Phase 2 to summarize product vision, goals, and target users.
- Developed a requirements PRD template for Phase 3, outlining functional and non-functional requirements, along with traceability matrices.

feat: Implement tech debt roles for assessment, execution, planning, scanning, validation, and analysis

- Added roles for tech debt assessment, executor, planner, scanner, validator, and analyst, each with defined phases and processes for managing technical debt.
- Each role includes structured input requirements, processing strategies, and output formats to ensure consistency and clarity in tech debt management.

.claude/skills/team-lifecycle-v4/roles/reviewer/commands/review-spec.md

@@ -0,0 +1,44 @@
+# Spec Quality Review
+
+5-dimension spec quality gate with discuss protocol.
+
+## Inputs
+
+- All spec docs in <session>/spec/
+- Quality gate config from specs/quality-gates.md
+
+## Dimensions
+
+| Dimension | Weight | Focus |
+|-----------|--------|-------|
+| Completeness | 25% | All sections present with substance |
+| Consistency | 25% | Terminology, format, references uniform |
+| Traceability | 25% | Goals→Reqs→Arch→Stories chain |
+| Depth | 25% | AC testable, ADRs justified, stories estimable |
+
+## Review Process
+
+1. Read all spec documents from <session>/spec/
+2. Load quality gate thresholds from specs/quality-gates.md
+3. Score each dimension
+4. Run cross-document validation
+5. Generate readiness-report.md + spec-summary.md
+6. Run DISCUSS-003:
+   - Artifact: <session>/spec/readiness-report.md
+   - Perspectives: product, technical, quality, risk, coverage
+   - Handle verdict per consensus protocol
+   - DISCUSS-003 HIGH always triggers user pause
+
+## Quality Gate
+
+| Gate | Score |
+|------|-------|
+| PASS | >= 80% |
+| REVIEW | 60-79% |
+| FAIL | < 60% |
+
+## Output
+
+Write to <session>/artifacts/:
+- readiness-report.md: Dimension scores, issue list, traceability matrix
+- spec-summary.md: Executive summary of all spec docs