feat: improve the memory system

skills/web-fetch/SKILL.md

@@ -0,0 +1,49 @@
+---
+name: web-fetch
+description: Fetch and extract readable content from web pages
+homepage: https://github.com/zhayujie/chatgpt-on-wechat
+metadata:
+  emoji: 🌐
+  requires:
+    bins: ["curl"]
+---
+
+# Web Fetch
+
+Fetch and extract readable content from web pages using curl and basic text processing.
+
+## Usage
+
+Use the provided script to fetch a URL and extract its content:
+
+```bash
+bash scripts/fetch.sh <url> [output_file]
+```
+
+**Parameters:**
+- `url`: The HTTP/HTTPS URL to fetch (required)
+- `output_file`: Optional file to save the output (default: stdout)
+
+**Returns:**
+- Extracted page content with title and text
+
+## Examples
+
+### Fetch a web page
+```bash
+bash scripts/fetch.sh "https://example.com"
+```
+
+### Save to file
+```bash
+bash scripts/fetch.sh "https://example.com" output.txt
+cat output.txt
+```
+
+## Notes
+
+- Uses curl for HTTP requests (timeout: 20s)
+- Extracts title and basic text content
+- Removes HTML tags and scripts
+- Works with any standard web page
+- No external dependencies beyond curl