Add clipboard paste functionality and documentation for X Articles and regular posts

- Implemented `paste-from-clipboard.ts` script to send real paste keystrokes across macOS, Linux, and Windows.
- Created detailed guides for publishing articles to X Articles and posting regular content, including usage examples and troubleshooting tips.
- Added support for Markdown formatting and image handling in X Articles.
- Documented manual workflows for image pasting and browser interactions using Playwright MCP.

skills/baoyu-post-to-wechat/SKILL.md

@@ -7,25 +7,45 @@ description: Post content to WeChat Official Account (微信公众号). Supports
 
 Post content to WeChat Official Account using Chrome CDP automation.
 
+## Script Directory
+
+**Important**: All scripts are located in the `scripts/` subdirectory of this skill.
+
+**Agent Execution Instructions**:
+1. Determine this SKILL.md file's directory path as `SKILL_DIR`
+2. Script path = `${SKILL_DIR}/scripts/<script-name>.ts`
+3. Replace all `${SKILL_DIR}` in this document with the actual path
+
+**Script Reference**:
+| Script | Purpose |
+|--------|---------|
+| `scripts/wechat-browser.ts` | Image-text posts (图文) |
+| `scripts/wechat-article.ts` | Full article posting (文章) |
+| `scripts/md-to-wechat.ts` | Markdown → WeChat HTML conversion |
+| `scripts/copy-to-clipboard.ts` | Copy content to clipboard |
+| `scripts/paste-from-clipboard.ts` | Send real paste keystroke |
+
 ## Quick Usage
 
 ### Image-Text (图文) - Multiple images with title/content
 
 ```bash
 # From markdown file and image directory
-npx -y bun ./scripts/wechat-browser.ts --markdown article.md --images ./images/
+npx -y bun ${SKILL_DIR}/scripts/wechat-browser.ts --markdown article.md --images ./images/
 
 # With explicit parameters
-npx -y bun ./scripts/wechat-browser.ts --title "标题" --content "内容" --image img1.png --image img2.png --submit
+npx -y bun ${SKILL_DIR}/scripts/wechat-browser.ts --title "标题" --content "内容" --image img1.png --image img2.png --submit
 ```
 
 ### Article (文章) - Full markdown with formatting
 
 ```bash
 # Post markdown article
-npx -y bun ./scripts/wechat-article.ts --markdown article.md --theme grace
+npx -y bun ${SKILL_DIR}/scripts/wechat-article.ts --markdown article.md --theme grace
 ```
 
+> **Note**: `${SKILL_DIR}` represents this skill's installation directory. Agent replaces with actual path at runtime.
+
 ## References
 
 - **Image-Text Posting**: See `references/image-text-posting.md` for detailed image-text posting guide