feat: init new self-hosting method

apps/web/app/api/revalidate/route.ts

@@ -0,0 +1,19 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { revalidateTag } from 'next/cache'
+
+export async function GET(request: NextRequest) {
+  const tag: any = request.nextUrl.searchParams.get('tag')
+  revalidateTag(tag)
+
+  return NextResponse.json(
+    { revalidated: true, now: Date.now(), tag },
+    {
+      status: 200,
+      headers: {
+        'Access-Control-Allow-Origin': '*',
+        'Access-Control-Allow-Methods': 'GET, POST, PUT, DELETE, OPTIONS',
+        'Access-Control-Allow-Headers': 'Content-Type, Authorization',
+      },
+    }
+  )
+}