Add admin credentials to env.example and update copyright to 2025

- Add ADMIN_USERNAME, ADMIN_PASSWORD, and JWT_SECRET to .env.example
- Update copyright year from 2024 to 2025 in admin login page
- Update copyright year from 2024 to 2025 in footer component

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.env.example

@@ -47,6 +47,11 @@ SMTP_FROM_NAME=Puffin Offset
 SMTP_FROM_EMAIL=noreply@puffinoffset.com
 ADMIN_EMAIL=matt@puffinoffset.com
 
+# === Admin Portal Authentication ===
+ADMIN_USERNAME=your_admin_username_here
+ADMIN_PASSWORD=your_admin_password_here
+JWT_SECRET=your_jwt_secret_key_here
+
 # ========================================
 # NOTES
 # ========================================

app/admin/login/page.tsx

@@ -193,7 +193,7 @@ export default function AdminLogin() {
           transition={{ delay: 0.6, duration: 0.5 }}
           className="text-center mt-6 text-sm font-medium text-off-white/70"
         >
-          © 2024 Puffin Offset. Secure admin access.
+          © 2025 Puffin Offset. Secure admin access.
         </motion.p>
       </motion.div>
     </div>

src/components/Footer.tsx

@@ -68,7 +68,7 @@ export default function Footer() {
           viewport={{ once: true }}
         >
           <p className="text-slate-400">
-            © 2024 Puffin Offset. Luxury meets sustainability.
+            © 2025 Puffin Offset. Luxury meets sustainability.
           </p>
         </motion.div>
       </div>