feat: Implement UX improvement pipeline with role specifications and task management

- Added role specifications for explorer, implementer, scanner, tester, and diagnoser.
- Created dispatch and monitor commands for orchestrating task execution.
- Defined team configuration for the UX improvement pipeline, including roles and responsibilities.
- Established structured task descriptions for scanning, diagnosing, designing, implementing, and testing UI components.
- Introduced caching mechanisms for exploration results and context accumulation for implementer tasks.
- Enhanced error handling and validation processes across roles.

.claude/skills/team-ux-improve/role-specs/implementer.md

@@ -0,0 +1,125 @@
+---
+prefix: IMPL
+inner_loop: true
+message_types:
+  success: impl_complete
+  error: error
+---
+
+# 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. Load framework conventions from wisdom files (if available)
+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:
+
+```
+Edit({
+  file_path: "src/components/Upload.tsx",
+  old_string: "const handleUpload = async () => {",
+  new_string: "const [isLoading, setIsLoading] = useState(false);\nconst [error, setError] = useState<string | null>(null);\n\nconst handleUpload = async () => {\n  setIsLoading(true);\n  setError(null);\n  try {"
+})
+```
+
+### 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:
+```
+{
+  completed_fixes: [...prev, <current-fix>],
+  modified_files: [...prev, <current-files>],
+  patterns_applied: [...prev, <current-patterns>]
+}
+```
+
+Write summary to `<session>/artifacts/fixes/README.md`:
+```markdown
+# Implementation Summary
+
+## Completed Fixes
+- Issue #1: Upload form loading state - DONE
+- Issue #2: Error handling - DONE
+
+## Modified Files
+- src/components/Upload.tsx
+- src/components/Form.tsx
+
+## Patterns Applied
+- React useState for loading/error states
+- try/catch/finally for async handling
+- Conditional rendering for error messages
+```
+
+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
+         })
+```