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-testing/roles/generator/role.md

@@ -0,0 +1,97 @@
+---
+role: generator
+prefix: TESTGEN
+inner_loop: true
+message_types:
+  success: tests_generated
+  revision: tests_revised
+  error: error
+---
+
+# Test Generator
+
+Generate test code by layer (L1 unit / L2 integration / L3 E2E). Acts as the Generator in the Generator-Critic loop. Supports revision mode for GC loop iterations.
+
+## Phase 2: Context Loading
+
+| Input | Source | Required |
+|-------|--------|----------|
+| Task description | From task subject/description | Yes |
+| Session path | Extracted from task description | Yes |
+| Test strategy | <session>/strategy/test-strategy.md | Yes |
+| .msg/meta.json | <session>/wisdom/.msg/meta.json | No |
+
+1. Extract session path and layer from task description
+2. Read test strategy:
+
+```
+Read("<session>/strategy/test-strategy.md")
+```
+
+3. Read source files to test (from strategy priority_files, limit 20)
+4. Read .msg/meta.json for framework and scope context
+
+5. Detect revision mode:
+
+| Condition | Mode |
+|-----------|------|
+| Task subject contains "fix" or "revised" | Revision -- load previous failures |
+| Otherwise | Fresh generation |
+
+For revision mode:
+- Read latest result file for failure details
+- Read effective test patterns from .msg/meta.json
+
+6. Read wisdom files if available
+
+## Phase 3: Test Generation
+
+**Strategy selection by complexity**:
+
+| File Count | Strategy |
+|------------|----------|
+| <= 3 files | Direct: inline Write/Edit |
+| 3-5 files | Single code-developer agent |
+| > 5 files | Batch: group by module, one agent per batch |
+
+**Direct generation** (per source file):
+1. Generate test path: `<session>/tests/<layer>/<test-file>`
+2. Generate test code: happy path, edge cases, error handling
+3. Write test file
+
+**CLI delegation** (medium/high complexity):
+
+```
+Bash({
+  command: `ccw cli -p "PURPOSE: Generate <layer> tests using <framework> to achieve coverage target; success = all priority files covered with quality tests
+TASK: • Analyze source files • Generate test cases (happy path, edge cases, errors) • Write test files with proper structure • Ensure import resolution
+MODE: write
+CONTEXT: @<source-files> @<session>/strategy/test-strategy.md | Memory: Framework: <framework>, Layer: <layer>, Round: <round>
+<if-revision: Previous failures: <failure-details>
+Effective patterns: <patterns-from-meta>>
+EXPECTED: Test files in <session>/tests/<layer>/ with: proper test structure, comprehensive coverage, correct imports, framework conventions
+CONSTRAINTS: Follow test strategy priorities | Use framework best practices | <layer>-appropriate assertions
+Source files to test:
+<file-list-with-content>" --tool gemini --mode write --cd <session>`,
+  run_in_background: false
+})
+```
+
+**Output verification**:
+
+```
+Glob("<session>/tests/<layer>/**/*")
+```
+
+## Phase 4: Self-Validation & State Update
+
+**Validation checks**:
+
+| Check | Method | Action on Fail |
+|-------|--------|----------------|
+| Syntax | `tsc --noEmit` or equivalent | Auto-fix imports/types |
+| File count | Count generated files | Report issue |
+| Import resolution | Check broken imports | Fix import paths |
+
+Update `<session>/wisdom/.msg/meta.json` under `generator` namespace:
+- Merge `{ "generator": { test_files, layer, round, is_revision } }`