feat(jamie-faq-entry): add skill with dual-platform structure and slash command

Restructure 42-jamie-faq-entry into code/desktop/shared layout,
create Claude Code directive, register /jamie-faq-entry command.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

custom-skills/42-jamie-faq-entry/README.md

@@ -0,0 +1,30 @@
+# 42 — Jamie FAQ Entry
+
+Generate, review, and edit Q&A entries for Jamie Clinic's KakaoTalk Plus Channel **Kanana 상담매니저** chatbot.
+
+## Capabilities
+
+- Create new Q&A entries following Kanana character limits and format
+- Review existing entries for medical ad compliance (의료법 제56조)
+- Enforce brand tone, CTA selection, and 1-intent-1-answer rule
+- Batch operations with category grouping and status markers
+
+## Structure
+
+```
+42-jamie-faq-entry/
+├── code/
+│   └── CLAUDE.md            # Claude Code directive
+├── desktop/
+│   └── SKILL.md             # Claude Desktop skill
+├── shared/
+│   └── current-entries.md   # Registered Q&A entries (31 entries)
+└── README.md
+```
+
+## Related Skills
+
+| Skill | Purpose |
+|-------|---------|
+| jamie-marketing-editor | Brand copy and procedure descriptions |
+| jamie-brand-audit | Medical ad compliance and brand tone review |