Refactor workflow session commands to utilize ccw CLI for session management

- Updated session completion process to use `ccw session` commands for listing, reading, and updating session statuses.
- Enhanced session listing command to provide metadata and statistics using `ccw session list` and `ccw session stats`.
- Streamlined session resume functionality with `ccw session` commands for checking status and updating session state.
- Improved session creation process by replacing manual directory and metadata handling with `ccw session init`.
- Introduced `session_manager` tool for simplified session operations, including listing, updating, and archiving sessions.
- Updated conflict resolution tools to generate structured output in `conflict-resolution.json` instead of markdown files.
- Enhanced TDD and UI design tools to utilize `ccw cli exec` for executing analysis commands, improving integration with the workflow.

.claude/skills/command-guide/reference/commands/workflow/ui-design/import-from-code.md

@@ -180,14 +180,14 @@ Task(subagent_type="ui-design-agent",
   - Pattern: rg → Extract values → Compare → If different → Read full context with comments → Record conflict
   - Alternative (if many files): Execute CLI analysis for comprehensive report:
     \`\`\`bash
-    cd ${source} && gemini -p \"
+    ccw cli exec \"
     PURPOSE: Detect color token conflicts across all CSS/SCSS/JS files
     TASK: • Scan all files for color definitions • Identify conflicting values • Extract semantic comments
     MODE: analysis
     CONTEXT: @**/*.css @**/*.scss @**/*.js @**/*.ts
     EXPECTED: JSON report listing conflicts with file:line, values, semantic context
     RULES: Focus on core tokens | Report ALL variants | analysis=READ-ONLY
-    \"
+    \" --tool gemini --cd ${source}
     \`\`\`
 
   **Step 1: Load file list**
@@ -295,14 +295,14 @@ Task(subagent_type="ui-design-agent",
   - Pattern: rg → Identify animation types → Map framework usage → Prioritize extraction targets
   - Alternative (if complex framework mix): Execute CLI analysis for comprehensive report:
     \`\`\`bash
-    cd ${source} && gemini -p \"
+    ccw cli exec \"
     PURPOSE: Detect animation frameworks and patterns
     TASK: • Identify frameworks • Map animation patterns • Categorize by complexity
     MODE: analysis
     CONTEXT: @**/*.css @**/*.scss @**/*.js @**/*.ts
     EXPECTED: JSON report listing frameworks, animation types, file locations
     RULES: Focus on framework consistency | Map all animations | analysis=READ-ONLY
-    \"
+    \" --tool gemini --cd ${source}
     \`\`\`
 
   **Step 1: Load file list**
@@ -374,14 +374,14 @@ Task(subagent_type="ui-design-agent",
   - Pattern: rg → Count occurrences → Classify by frequency → Prioritize universal components
   - Alternative (if large codebase): Execute CLI analysis for comprehensive categorization:
     \`\`\`bash
-    cd ${source} && gemini -p \"
+    ccw cli exec \"
     PURPOSE: Classify components as universal vs specialized
     TASK: • Identify UI components • Classify reusability • Map layout systems
     MODE: analysis
     CONTEXT: @**/*.css @**/*.scss @**/*.js @**/*.ts @**/*.html
     EXPECTED: JSON report categorizing components, layout patterns, naming conventions
     RULES: Focus on component reusability | Identify layout systems | analysis=READ-ONLY
-    \"
+    \" --tool gemini --cd ${source}
     \`\`\`
 
   **Step 1: Load file list**