feat: add initial Slidev presentation and demo components

- Created Slidev presentation structure with index.md and contents.md.
- Implemented footer and menu components for navigation.
- Added Markdown preview component with syntax highlighting.
- Developed HTML template for consistent page structure.
- Introduced button component with variant support.
- Added Vue counter component for interactive demos.
- Configured content collections for documentation.
- Created multiple markdown documents for demo purposes.
- Established global and theme styles for consistent UI.
- Set up TypeScript configuration for better development experience.

services/package.json

@@ -0,0 +1,22 @@
+{
+  "name": "services",
+  "version": "0.0.1",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "abearxiong <xiongxiao@xiongxiao.me> (https://www.xiongxiao.me)",
+  "license": "MIT",
+  "packageManager": "pnpm@10.25.0",
+  "type": "module",
+  "dependencies": {
+    "@kevisual/app": "^0.0.1",
+    "@kevisual/context": "^0.0.4",
+    "@kevisual/noco": "^0.0.8",
+    "@kevisual/noco-auto": "^0.0.2",
+    "@kevisual/use-config": "^1.0.21",
+    "dayjs": "^1.11.19"
+  }
+}