Refactor command YAML headers: replace examples with argument-hint

**Summary:**
Updated all 62 command files in `.claude/commands` directory to improve parameter documentation clarity by replacing `examples` field with descriptive `argument-hint` field.

**Changes:**
- Added/improved `argument-hint` for all commands based on usage patterns
- Removed `examples` field and all example items from YAML headers
- Maintained all other YAML fields (name, description, usage, allowed-tools)
- Deleted obsolete commands: workflow/issue/*, workflow/session/pause.md, workflow/session/switch.md
- Cleaned up temporary analysis files

**Rationale:**
The `argument-hint` field provides clearer, more concise parameter documentation than example lists, improving command discoverability and usability in the Claude Code interface.

**Files Modified:** 62 command files
**Lines Changed:** -1570 insertions, +192 deletions

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

README_CN.md

@@ -388,7 +388,7 @@ cd .workflow/WFS-auth/.design/prototypes && python -m http.server 8080
 
 | 命令 | 描述 |
 |---|---|
-| `/workflow:session:*` | 管理开发会话（`start`, `pause`, `resume`, `list`, `switch`, `complete`）。 |
+| `/workflow:session:*` | 管理开发会话（`start`, `resume`, `list`, `complete`）。 |
 | `/workflow:brainstorm:*` | 使用基于角色的智能体进行多视角规划。 |
 | `/workflow:ui-design:explore-auto` | **v4.2.1** 矩阵探索模式 - 生成多个风格×布局变体，全面探索设计方向。 |
 | `/workflow:ui-design:imitate-auto` | **v4.2.1** 快速模仿模式 - 单一设计快速复制，自动截图和直接令牌提取。 |