fix: Made by Galyaviev pinned to bottom center on login page

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

gui/templates/login.html

@@ -24,9 +24,10 @@
       background: var(--bg);
       min-height: 100vh;
       display: flex;
+      flex-direction: column;
       align-items: center;
       justify-content: center;
-      padding: 24px;
+      padding: 24px 24px 16px;
     }
 
     .card {
@@ -146,14 +147,16 @@
       text-align: center;
       font-family: 'Dancing Script', cursive;
       font-size: 20px;
-      color: #9ca3af;
-      margin-top: 24px;
+      color: #c4cad8;
+      margin-top: auto;
+      padding: 20px 0 4px;
       letter-spacing: 0.02em;
     }
 
     .made-by-login a {
       color: inherit;
       text-decoration: none;
+      transition: color .15s;
     }
 
     .made-by-login a:hover { color: var(--accent); }