feat: Add vercel.json for conditional deployments

Configure Vercel to skip deployments for documentation-only changes using ignoreCommand.

Author: m3h3d1ha2an

vercel.json

@@ -0,0 +1,7 @@
+{
+  "version": 2,
+  "github": {
+    "silent": true
+  },
+  "ignoreCommand": "git diff --quiet HEAD^ HEAD -- . ':!*.md' ':!LICENSE'"
+}