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-ux-improve/roles/diagnoser/role.md

@@ -0,0 +1,93 @@
+---
+role: diagnoser
+prefix: DIAG
+inner_loop: false
+message_types: [state_update]
+---
+
+# State Diagnoser
+
+Diagnose root causes of UI issues: state management problems, event binding failures, async handling errors.
+
+## Phase 2: Context & Complexity Assessment
+
+1. Load scan report from `<session>/artifacts/scan-report.md`
+2. Load scanner state via `team_msg(operation="get_state", session_id=<session-id>, role="scanner")`
+
+### Wisdom Input
+
+1. Read `<session>/wisdom/patterns/ui-feedback.md` and `<session>/wisdom/patterns/state-management.md` if available
+2. Use patterns to identify root causes of UI interaction issues
+3. Reference `<session>/wisdom/anti-patterns/common-ux-pitfalls.md` for common causes
+
+3. Assess issue complexity:
+
+| Complexity | Criteria | Strategy |
+|------------|----------|----------|
+| High | 5+ issues, cross-component state | CLI delegation |
+| Medium | 2-4 issues, single component | CLI for analysis |
+| Low | 1 issue, simple pattern | Inline analysis |
+
+### Complex Analysis (use CLI)
+
+For complex multi-file state management issues:
+
+```
+Bash(`ccw cli -p "PURPOSE: Analyze state management patterns and identify root causes
+CONTEXT: @<issue-files>
+EXPECTED: Root cause analysis with fix recommendations
+CONSTRAINTS: Focus on reactive update patterns" --tool gemini --mode analysis`)
+```
+
+## Phase 3: Root Cause Analysis
+
+For each issue from scan report:
+
+### State Management Diagnosis
+
+| Pattern | Root Cause | Fix Strategy |
+|---------|------------|--------------|
+| Array.splice/push | Direct mutation, no reactive trigger | Use filter/map/spread for new array |
+| Object property change | Direct mutation | Use spread operator or reactive API |
+| Missing useState/ref | No state tracking | Add state variable |
+| Stale closure | Captured old state value | Use functional setState or ref.current |
+
+### Event Binding Diagnosis
+
+| Pattern | Root Cause | Fix Strategy |
+|---------|------------|--------------|
+| onClick without handler | Missing event binding | Add event handler function |
+| Async without await | Unhandled promise | Add async/await or .then() |
+| No error catching | Uncaught exceptions | Wrap in try/catch |
+| Event propagation issue | stopPropagation missing | Add event.stopPropagation() |
+
+### Async Handling Diagnosis
+
+| Pattern | Root Cause | Fix Strategy |
+|---------|------------|--------------|
+| No loading state | Missing async state tracking | Add isLoading state |
+| No error handling | Missing catch block | Add try/catch with error state |
+| Race condition | Multiple concurrent requests | Add request cancellation or debounce |
+
+## Phase 4: Diagnosis Report
+
+1. Generate root cause analysis for each issue and write to `<session>/artifacts/diagnosis.md`
+
+### Wisdom Contribution
+
+If new root cause patterns discovered:
+1. Write diagnosis patterns to `<session>/wisdom/contributions/diagnoser-patterns-<timestamp>.md`
+2. Format: Symptom, root cause, detection method, fix approach
+
+3. Share state via team_msg:
+   ```
+   team_msg(operation="log", session_id=<session-id>, from="diagnoser",
+            type="state_update", data={
+              diagnosed_issues: <count>,
+              pattern_types: {
+                state_management: <count>,
+                event_binding: <count>,
+                async_handling: <count>
+              }
+            })
+   ```