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

prisma/seed.ts

@@ -0,0 +1,42 @@
+import "dotenv/config"
+import { prisma } from "../lib/prisma"
+import bcrypt from "bcryptjs"
+
+async function main() {
+  // Check if admin already exists
+  const existingAdmin = await prisma.user.findUnique({
+    where: { email: "admin@mirrormatch.com" },
+  })
+
+  if (existingAdmin) {
+    console.log("Admin user already exists. Skipping seed.")
+    return
+  }
+
+  // Create default admin user
+  const passwordHash = await bcrypt.hash("admin123", 10)
+
+  await prisma.user.create({
+    data: {
+      name: "Admin",
+      email: "admin@mirrormatch.com",
+      passwordHash,
+      role: "ADMIN",
+      points: 0,
+    },
+  })
+
+  console.log("✅ Created admin user:")
+  console.log("   Email: admin@mirrormatch.com")
+  console.log("   Password: admin123")
+  console.log("   ⚠️  Please change the password after first login!")
+}
+
+main()
+  .catch((e) => {
+    console.error(e)
+    process.exit(1)
+  })
+  .finally(async () => {
+    await prisma.$disconnect()
+  })