fix(dashboard): reset scroll on ChatView refocus to undo iOS drift

After dismissing and re-bringing up the mobile keyboard, iOS could
leave window.scrollY > 0 and visualViewport.offsetTop > 0. With
useMobileScrollLock then pinning body{position:fixed} relative to that
drifted scroll, the message thread anchored above the visible viewport
and a large blank area appeared below it.

handleInputFocus now resets window scroll to (0,0) on mobile in a
zero-delay timeout — late enough that iOS finishes its own
scroll-into-view first, but before useMobileScrollLock observes the
drifted state.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

packages/dashboard/app/components/QuickEntryBox.css

@@ -108,11 +108,31 @@
 .quick-entry-actions {
   display: flex;
   align-items: center;
-  gap: 8px;
+  gap: var(--space-sm);
   flex-wrap: wrap;
   flex: 1 1 auto;
 }
 
+.quick-entry-branch-fields {
+  display: flex;
+  flex-wrap: wrap;
+  gap: var(--space-sm);
+  width: 100%;
+}
+
+.quick-entry-branch-fields label {
+  display: flex;
+  flex: 1 1 calc(50% - var(--space-sm));
+  flex-direction: column;
+  gap: var(--space-xs);
+  min-width: min(100%, calc(var(--space-xl) * 12));
+}
+
+.quick-entry-branch-fields span {
+  color: var(--text-muted);
+  font-size: 0.75rem;
+}
+
 .quick-entry-model-wrap {
   position: relative;
 }
@@ -434,8 +454,13 @@
     min-height: 36px;
   }
 
+  .quick-entry-branch-fields label {
+    flex: 1 1 100%;
+    min-width: 100%;
+  }
+
   .quick-entry-box .dep-dropdown {
-    max-width: calc(100vw - 32px);
+    max-width: calc(100vw - calc(var(--space-lg) * 2));
   }
 }