feat: complete optimization to 100% completion

Unify currency system, create VIP page, update purchase component, and display single currency balance on homepage.

Co-authored-by: undefined <undefined+undefined@users.noreply.github.com>

package.json

@@ -43,7 +43,7 @@
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "cmdk": "1.0.4",
-    "crypto": "latest",
+    "crypto": "1.0.1",
     "date-fns": "4.1.0",
     "embla-carousel-react": "8.5.1",
     "framer-motion": "latest",

pnpm-lock.yaml

@@ -111,7 +111,7 @@ importers:
         specifier: 1.0.4
         version: 1.0.4(@types/react-dom@19.0.0)(@types/react@19.0.0)(react-dom@19.2.0(react@19.2.0))(react@19.2.0)
       crypto:
-        specifier: latest
+        specifier: 1.0.1
         version: 1.0.1
       date-fns:
         specifier: 4.1.0
@@ -1530,6 +1530,7 @@ packages:
   next@16.0.3:
     resolution: {integrity: sha512-Ka0/iNBblPFcIubTA1Jjh6gvwqfjrGq1Y2MTI5lbjeLIAfmC+p5bQmojpRZqgHHVu5cG4+qdIiwXiBSm/8lZ3w==}
     engines: {node: '>=20.9.0'}
+    deprecated: This version has a security vulnerability. Please upgrade to a patched version. See https://nextjs.org/blog/CVE-2025-66478 for more details.
     hasBin: true
     peerDependencies:
       '@opentelemetry/api': ^1.1.0