Remove page-blinking CSS animations and old deploy script

- Remove .ascii-frame-outer:hover flicker animation (caused article to
  shake/blink every time cursor entered the ticket container)
- Remove body flicker animation (caused full page blink every 30s)
- Remove deploy.sh (deployment now handled by Gitea CI/CD)

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

assets/css/dashboard.css

@@ -148,14 +148,6 @@ body::before {
     100% { transform: translate(0); }
 }
 
-.ascii-frame-outer:hover {
-    animation: flicker 0.15s ease-in-out 1;
-}
-
-/* Random screen glitch every 30 seconds */
-body {
-    animation: flicker 0.2s ease-in-out 30s infinite;
-}
 
 /* Subtle data stream effect in corner */
 body::after {