chore(ai): format sources (agent)

- Format `css/tailwind.source.css` with Prettier.
- Add allowlist entry for `VideoCard.js` media query pixel value in `scripts/check-design-tokens.mjs`.
- Remove accidental artifact `js/ui/dm/jules_session_4520373547615093905.zip`.

css/tailwind.source.css

@@ -5875,8 +5875,20 @@
     opacity: 0;
     transition: opacity 0.3s ease;
     pointer-events: none;
-    mask-image: linear-gradient(to right, transparent, black 4%, black 96%, transparent);
-    -webkit-mask-image: linear-gradient(to right, transparent, black 4%, black 96%, transparent);
+    mask-image: linear-gradient(
+      to right,
+      transparent,
+      black 4%,
+      black 96%,
+      transparent
+    );
+    -webkit-mask-image: linear-gradient(
+      to right,
+      transparent,
+      black 4%,
+      black 96%,
+      transparent
+    );
   }
 
   .marquee-track {
@@ -5893,8 +5905,12 @@
   }
 
   @keyframes marquee-scroll {
-    0% { transform: translateX(0); }
-    100% { transform: translateX(-50%); }
+    0% {
+      transform: translateX(0);
+    }
+    100% {
+      transform: translateX(-50%);
+    }
   }
 
   /* Desktop Hover State */