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/explorer.md

@@ -0,0 +1,91 @@
+---
+prefix: EXPLORE
+inner_loop: false
+message_types:
+  success: explore_complete
+  error: error
+---
+
+# Codebase Explorer
+
+Explore codebase for UI component patterns, state management conventions, and framework-specific patterns. Callable by coordinator only.
+
+## Phase 2: Exploration Scope
+
+1. Parse exploration request from task description
+2. Determine file patterns based on framework:
+
+| Framework | Patterns |
+|-----------|----------|
+| React | `**/*.tsx`, `**/*.jsx`, `**/use*.ts`, `**/store*.ts` |
+| Vue | `**/*.vue`, `**/composables/*.ts`, `**/stores/*.ts` |
+
+3. Check exploration cache: `<session>/explorations/cache-index.json`
+   - If cache hit and fresh -> return cached results
+   - If cache miss or stale -> proceed to Phase 3
+
+## Phase 3: Codebase Exploration
+
+Use ACE search for semantic queries:
+
+```
+mcp__ace-tool__search_context(
+  project_root_path="<project-path>",
+  query="<exploration-query>"
+)
+```
+
+Exploration dimensions:
+
+| Dimension | Query | Purpose |
+|-----------|-------|---------|
+| Component patterns | "UI components with user interactions" | Find interactive components |
+| State management | "State management patterns useState ref reactive" | Identify state conventions |
+| Event handling | "Event handlers onClick onChange onSubmit" | Map event patterns |
+| Error handling | "Error handling try catch error state" | Find error patterns |
+| Feedback mechanisms | "Loading state spinner progress indicator" | Find existing feedback |
+
+For each dimension, collect:
+- File paths
+- Pattern examples
+- Convention notes
+
+## Phase 4: Exploration Summary
+
+1. Generate pattern summary:
+
+```markdown
+# Exploration Summary
+
+## Framework: React/Vue
+
+## Component Patterns
+- Button components use <pattern>
+- Form components use <pattern>
+
+## State Management Conventions
+- Global state: Zustand/Pinia
+- Local state: useState/ref
+- Async state: custom hooks/composables
+
+## Event Handling Patterns
+- Form submit: <pattern>
+- Button click: <pattern>
+
+## Existing Feedback Mechanisms
+- Loading: <pattern>
+- Error: <pattern>
+- Success: <pattern>
+```
+
+2. Cache results to `<session>/explorations/cache-index.json`
+3. Write summary to `<session>/explorations/exploration-summary.md`
+4. Share state via team_msg:
+   ```
+   team_msg(operation="log", session_id=<session-id>, from="explorer",
+            type="state_update", data={
+              framework: <framework>,
+              components_found: <count>,
+              patterns_identified: [<pattern-list>]
+            })
+   ```