feat(repo): 整理 Qoder Skills 和 MCP 配置到仓库

- 添加 5 个用户级别 Skills:
  - auto-commit: 自动 Git 提交
  - karpathy-guidelines: 编码规范指南
  - opencli-websearch: 多源网络搜索
  - pdf-reader: PDF 内容提取
  - repo-analyzer: 项目深度分析

- 添加 Playwright MCP 配置 (21 个浏览器自动化工具)
- 创建完整的 README.md 文档说明

mcps/playwright/tools/browser_evaluate.json

@@ -0,0 +1,28 @@
+{
+  "name": "browser_evaluate",
+  "description": "Evaluate JavaScript expression on page or element",
+  "inputSchema": {
+    "properties": {
+      "element": {
+        "description": "Human-readable element description used to obtain permission to interact with the element",
+        "type": "string"
+      },
+      "filename": {
+        "description": "Filename to save the result to. If not provided, result is returned as text.",
+        "type": "string"
+      },
+      "function": {
+        "description": "() =\u003e { /* code */ } or (element) =\u003e { /* code */ } when element is provided",
+        "type": "string"
+      },
+      "ref": {
+        "description": "Exact target element reference from the page snapshot",
+        "type": "string"
+      }
+    },
+    "required": [
+      "function"
+    ],
+    "type": "object"
+  }
+}