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>

.claude/commands/workflow/review.md

@@ -2,12 +2,7 @@
 name: review
 description: Optional specialized review (security, architecture, docs) for completed implementation
 usage: /workflow:review [--type=<type>] [session-id]
-argument-hint: "[--type=security|architecture|action-items|quality] [session-id]"
-examples:
-  - /workflow:review                           # Quality review of active session
-  - /workflow:review --type=security           # Security audit of active session
-  - /workflow:review --type=architecture WFS-user-auth  # Architecture review of specific session
-  - /workflow:review --type=action-items       # Pre-deployment verification
+argument-hint: "[--type=security|architecture|action-items|quality] [optional: session-id]"
 ---
 
 ### 🚀 Command Overview: `/workflow:review`