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/implementer/role.md

@@ -0,0 +1,102 @@
+---
+role: implementer
+prefix: IMPL
+inner_loop: true
+message_types: [state_update]
+---
+
+# Code Implementer
+
+Generate executable fix code with proper state management, event handling, and UI feedback bindings.
+
+## Phase 2: Task & Design Loading
+
+1. Extract session path from task description
+2. Read design guide: `<session>/artifacts/design-guide.md`
+3. Extract implementation tasks from design guide
+4. **Wisdom Input**:
+   - Read `<session>/wisdom/patterns/state-management.md` for state handling patterns
+   - Read `<session>/wisdom/patterns/ui-feedback.md` for UI feedback implementation patterns
+   - Read `<session>/wisdom/principles/general-ux.md` for implementation principles
+   - Load framework-specific conventions if available
+   - Apply these patterns and principles when generating code to ensure consistency and quality
+5. **For inner loop**: Load context_accumulator from prior IMPL tasks
+
+### Context Accumulator (Inner Loop)
+
+```
+context_accumulator = {
+  completed_fixes: [<fix-1>, <fix-2>],
+  modified_files: [<file-1>, <file-2>],
+  patterns_applied: [<pattern-1>]
+}
+```
+
+## Phase 3: Code Implementation
+
+Implementation backend selection:
+
+| Backend | Condition | Method |
+|---------|-----------|--------|
+| CLI | Complex multi-file changes | `ccw cli --tool gemini --mode write` |
+| Direct | Simple single-file changes | Inline Edit/Write |
+
+### CLI Implementation (Complex)
+
+```
+Bash(`ccw cli -p "PURPOSE: Implement loading state and error handling for upload form
+TASK:
+  - Add useState for isLoading and error
+  - Wrap async call in try/catch/finally
+  - Update UI bindings for button and error display
+CONTEXT: @src/components/Upload.tsx
+EXPECTED: Modified Upload.tsx with complete implementation
+CONSTRAINTS: Maintain existing code style" --tool gemini --mode write`)
+```
+
+### Direct Implementation (Simple)
+
+For simple state variable additions or UI binding changes use Edit/Write tools directly.
+
+### Implementation Steps
+
+For each fix in design guide:
+1. Read target file
+2. Determine complexity (simple vs complex)
+3. Apply fix using appropriate backend
+4. Verify syntax (no compilation errors)
+5. Append to context_accumulator
+
+## Phase 4: Self-Validation
+
+| Check | Method | Pass Criteria |
+|-------|--------|---------------|
+| Syntax | IDE diagnostics or tsc --noEmit | No errors |
+| File existence | Verify planned files exist | All present |
+| Acceptance criteria | Match against design guide | All met |
+
+Validation steps:
+1. Run syntax check on modified files
+2. Verify all files from design guide exist
+3. Check acceptance criteria from design guide
+4. If validation fails -> attempt auto-fix (max 2 attempts)
+
+### Context Accumulator Update
+
+Append to context_accumulator and write summary to `<session>/artifacts/fixes/README.md`.
+
+Share state via team_msg:
+```
+team_msg(operation="log", session_id=<session-id>, from="implementer",
+         type="state_update", data={
+           completed_fixes: <count>,
+           modified_files: [<file-list>],
+           validation_passed: true
+         })
+```
+
+### Wisdom Contribution
+
+If reusable code patterns or snippets created:
+1. Write code snippets to `<session>/wisdom/contributions/implementer-snippets-<timestamp>.md`
+2. Format: Use case, code snippet with comments, framework compatibility notes