feat: Auto-admin for specific email + POUNCE branding

- guggeryves@hotmail.com automatically gets admin rights on registration
- Changed navigation logo from 'pounce' to 'POUNCE' (uppercase)
- Adjusted letter-spacing for better visual appearance

backend/app/api/auth.py

@@ -99,6 +99,12 @@ async def register(
         name=user_data.name,
     )
     
+    # Auto-admin for specific email
+    ADMIN_EMAILS = ["guggeryves@hotmail.com"]
+    if user.email.lower() in [e.lower() for e in ADMIN_EMAILS]:
+        user.is_admin = True
+        await db.commit()
+    
     # Generate verification token
     verification_token = secrets.token_urlsafe(32)
     user.email_verification_token = verification_token

frontend/src/components/Header.tsx

@@ -20,10 +20,10 @@ export function Header() {
             className="flex items-center h-full hover:opacity-80 transition-opacity duration-300"
           >
             <span 
-              className="text-[1.375rem] sm:text-[1.625rem] font-bold tracking-[-0.02em] text-foreground"
+              className="text-[1.25rem] sm:text-[1.5rem] font-bold tracking-[0.15em] text-foreground"
               style={{ fontFamily: 'var(--font-display), Playfair Display, Georgia, serif' }}
             >
-              pounce
+              POUNCE
             </span>
           </Link>