test(gui): stabilize merged snapshot gates

apps/web/tests/subagent-conversation.e2e.ts

@@ -461,7 +461,7 @@ describe('web e2e: persisted subagent conversation and human continuation', () =
     ).toBe(3)
     expect(await page.getByText('Ungrouped', { exact: true }).count()).toBe(0)
     const hierarchy = page.getByRole('navigation', { name: 'Session hierarchy' })
-    expect(await hierarchy.getByRole('button').count()).toBe(1)
+    await expect.poll(() => hierarchy.getByRole('button').count()).toBe(1)
     await compareOrRefreshGolden(
       FORK_EXPECTED,
       await captureStableAria(page, '[role="tree"][aria-label="Sessions"]', scaffold.workspaceCwd),

packages/client/ui-conversation/src/client/skeleton/InputBar.module.css

@@ -121,25 +121,6 @@
   pointer-events: none;
 }
 
-.dragActive {
-  border-color: var(--dsw-alias-state-business-primary);
-  box-shadow: 0 0 0 2px color-mix(in srgb, var(--dsw-alias-state-business-primary) 24%, transparent), var(--dsw-shadow-lv2);
-}
-
-.dropHint {
-  position: absolute;
-  z-index: 2;
-  inset: 4px;
-  display: grid;
-  place-items: center;
-  border-radius: 16px;
-  background: color-mix(in srgb, var(--dsw-specific-input-major) 88%, var(--dsw-alias-state-business-primary));
-  color: var(--dsw-alias-state-business-primary);
-  font-size: 14px;
-  font-weight: 600;
-  pointer-events: none;
-}
-
 .accessory {
   display: flex;
   align-items: center;
@@ -198,57 +179,6 @@
   cursor: pointer;
 }
 
-.attachments {
-  display: flex;
-  gap: 8px;
-  min-width: 0;
-  padding: 12px 12px 0;
-  overflow-x: auto;
-  overflow-y: hidden;
-}
-
-.attachment {
-  position: relative;
-  flex: 0 0 72px;
-  width: 72px;
-  height: 72px;
-}
-
-.thumbnail {
-  width: 72px;
-  height: 72px;
-  padding: 0;
-  overflow: hidden;
-  border: 1px solid var(--dsw-alias-border-l2-darkmode-thin);
-  border-radius: 12px;
-  background: var(--dsw-alias-interactive-bg-hover);
-  cursor: zoom-in;
-}
-
-.thumbnail img {
-  width: 100%;
-  height: 100%;
-  object-fit: cover;
-}
-
-.remove {
-  position: absolute;
-  top: -6px;
-  right: -6px;
-  display: grid;
-  place-items: center;
-  width: 22px;
-  height: 22px;
-  padding: 0;
-  border: 1px solid var(--dsw-specific-input-major);
-  border-radius: 999px;
-  background: var(--dsw-alias-label-primary);
-  color: var(--dsw-specific-input-major);
-  font-size: 16px;
-  line-height: 1;
-  cursor: pointer;
-}
-
 /* Floating overlay anchor (menu / popupSelect shell): entries position
    themselves against the card (bottom: 100% + gap); closed entries render null. */
 .overlayAnchor {