Add sales division to installers, linter, and README

- Add sales/ to claude-code and copilot installer dir lists
- Add sales/ to lint-agents workflow trigger and changed-files filter
- Add LinkedIn Content Creator to marketing table in README
- Update agent count to 120

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

README.md

@@ -152,6 +152,7 @@ Growing your audience, one authentic interaction at a time.
 | 🇨🇳 [Baidu SEO Specialist](marketing/marketing-baidu-seo-specialist.md) | Baidu optimization, China SEO, ICP compliance | Ranking in Baidu and reaching China's search market |
 | 🎬 [Bilibili Content Strategist](marketing/marketing-bilibili-content-strategist.md) | B站 algorithm, danmaku culture, UP主 growth | Building audiences on Bilibili with community-first content |
 | 🎠 [Carousel Growth Engine](marketing/marketing-carousel-growth-engine.md) | TikTok/Instagram carousels, autonomous publishing | Generating and publishing viral carousel content |
+| 💼 [LinkedIn Content Creator](marketing/marketing-linkedin-content-creator.md) | Personal branding, thought leadership, professional content | LinkedIn growth, professional audience building, B2B content |
 | 🛒 [China E-Commerce Operator](marketing/marketing-china-ecommerce-operator.md) | Taobao, Tmall, Pinduoduo, live commerce | Running multi-platform e-commerce in China |
 | 🎥 [Kuaishou Strategist](marketing/marketing-kuaishou-strategist.md) | Kuaishou, 老铁 community, grassroots growth | Building authentic audiences in lower-tier markets |
 | 🔍 [SEO Specialist](marketing/marketing-seo-specialist.md) | Technical SEO, content strategy, link building | Driving sustainable organic search growth |
@@ -440,7 +441,7 @@ Each agent is designed with:
 
 ## 📊 Stats
 
-- 🎭 **119 Specialized Agents** across 12 divisions
+- 🎭 **120 Specialized Agents** across 12 divisions
 - 📝 **10,000+ lines** of personality, process, and code examples
 - ⏱️ **Months of iteration** from real-world usage
 - 🌟 **Battle-tested** in production environments