Merge remote-tracking branch 'origin/master' into feat/web-diff-card

# Conflicts:
#	packages/client/ui-conversation/README.i18n.yaml
#	packages/client/ui-conversation/src/client/chat/GenericToolCard.tsx
#	packages/client/ui-conversation/src/client/chat/ToolRow.tsx
#	packages/client/ui-conversation/src/client/skeleton/DetailsPanel.tsx
#	packages/client/ui-primitives/README.i18n.yaml
#	packages/client/ui-primitives/src/index.ts

apps/web/tests/built-boot.snapshot.ts

@@ -60,6 +60,9 @@ let unmount: (() => void) | undefined
 
 beforeEach(() => {
   localStorage.clear()
+  // English pinned before boot: role/text locators stay deterministic across
+  // localized component migrations (the newEnglishPage e2e convention).
+  localStorage.setItem('dsh.locale', 'en')
   document.title = 'DeepSeek Harness'
   vi.stubGlobal('ResizeObserver', ResizeObserverStub)
   vi.stubGlobal('requestAnimationFrame', (callback: FrameRequestCallback) =>