feat: github heatmap

Author: minorcell

package.json

@@ -19,6 +19,7 @@
     "@types/three": "^0.181.0",
     "clsx": "^2.1.1",
     "framer-motion": "^12.23.25",
+    "github-calendar": "^2.3.4",
     "gray-matter": "^4.0.3",
     "highlight.js": "^11.11.1",
     "lucide-react": "^0.556.0",
@@ -28,6 +29,7 @@
     "next-mdx-remote": "^5.0.0",
     "react": "19.2.0",
     "react-dom": "19.2.0",
+    "react-github-calendar": "^5.0.0",
     "react-medium-image-zoom": "^5.4.0",
     "rehype-highlight": "^7.0.2",
     "remark-gfm": "^4.0.0",