fix: Correct useEffect placement in projection page

- Moved useEffect hook before return statement (proper React component structure)
- Was causing Docker build failures with 'Unexpected token' error
- useEffect must be inside component function but before JSX return
- Build now completes successfully in 71.8s

app/projection/page.tsx

@@ -22,31 +22,6 @@ export default function ProjectionPage() {
   const WEEKLY_GROWTH_RATE = 0.50 // 50% per week (proven from database)
   const START_DATE = new Date('2025-11-24')
 
-  return (
-    <div className="min-h-screen bg-gradient-to-br from-gray-900 via-gray-800 to-gray-900 p-8">
-      {/* Back to Home Button */}
-      <div className="max-w-7xl mx-auto mb-6">
-        <a
-          href="/"
-          className="inline-flex items-center text-gray-400 hover:text-gray-300 transition-colors duration-200"
-        >
-          <svg
-            className="w-5 h-5 mr-2"
-            fill="none"
-            stroke="currentColor"
-            viewBox="0 0 24 24"
-          >
-            <path
-              strokeLinecap="round"
-              strokeLinejoin="round"
-              strokeWidth={2}
-              d="M10 19l-7-7m0 0l7-7m-7 7h18"
-            />
-          </svg>
-          Back to Dashboard
-        </a>
-      </div>
-
   useEffect(() => {
     async function fetchCurrentCapital() {
       try {