Add UI Design Commands: List and Reference Page Generator

- Implemented the '/workflow:ui-design:list' command to list all available design runs with metadata including session, created time, and prototype count.
- Developed the '/workflow:ui-design:reference-page-generator' command to generate multi-component reference pages and documentation from design run extraction, including setup, validation, and preview generation phases.
- Added detailed error handling and usage examples for both commands to enhance user experience and clarity.

.claude/skills/command-guide/index/essential-commands.json

@@ -58,7 +58,7 @@
     "name": "analyze",
     "command": "/cli:analyze",
     "description": "Read-only codebase analysis using Gemini (default), Qwen, or Codex with auto-pattern detection and template selection",
-    "arguments": "[--agent] [--tool codex|gemini|qwen] [--enhance] analysis target",
+    "arguments": "[--tool codex|gemini|qwen] [--enhance] analysis target",
     "category": "cli",
     "subcategory": null,
     "usage_scenario": "analysis",
@@ -69,7 +69,7 @@
     "name": "chat",
     "command": "/cli:chat",
     "description": "Read-only Q&A interaction with Gemini/Qwen/Codex for codebase questions with automatic context inference",
-    "arguments": "[--agent] [--tool codex|gemini|qwen] [--enhance] inquiry",
+    "arguments": "[--tool codex|gemini|qwen] [--enhance] inquiry",
     "category": "cli",
     "subcategory": null,
     "usage_scenario": "general",