feat: Add photo management features, duplicate detection, attempt limits, and admin deletion

- Add duplicate photo detection (file hash and URL checking)
- Add max attempts per photo with UI counter
- Simplify penalty system (auto-enable when points > 0)
- Prevent scores from going below 0
- Add admin photo deletion functionality
- Improve navigation with always-visible logout
- Prevent users from guessing their own photos

next.config.ts

@@ -0,0 +1,50 @@
+import type { NextConfig } from "next";
+
+const nextConfig: NextConfig = {
+  // Only process specific file extensions
+  pageExtensions: ["ts", "tsx", "js", "jsx"],
+  
+  // Image optimization configuration
+  images: {
+    remotePatterns: [
+      {
+        protocol: "http",
+        hostname: "**",
+      },
+      {
+        protocol: "https",
+        hostname: "**",
+      },
+    ],
+    unoptimized: false, // Enable optimization for better performance
+  },
+  
+  // Configure Turbopack
+  turbopack: {
+    resolveExtensions: [
+      ".tsx",
+      ".ts",
+      ".jsx",
+      ".js",
+      ".mjs",
+      ".json",
+    ],
+    rules: {
+      "*.md": {
+        loaders: [],
+        as: "*.txt",
+      },
+    },
+  },
+  
+  // Webpack configuration to externalize Prisma
+  webpack: (config, { isServer }) => {
+    if (isServer) {
+      config.externals = config.externals || [];
+      config.externals.push("@prisma/client");
+    }
+    return config;
+  },
+};
+
+export default nextConfig;