Merge remote-tracking branch 'origin/likun' into ji

# Conflicts:
#	frontend-web/src/components/workspace/artifacts/artifact-file-detail.tsx
#	frontend-web/src/components/workspace/code-editor.tsx
#	frontend-web/src/components/workspace/input-box.tsx
#	frontend-web/src/pages/ChatPage.tsx
#	offline-backend-20260512/backend/app/gateway/routers/artifacts.py

frontend-web/src/components/workspace/code-editor.tsx

@@ -38,20 +38,22 @@ export function CodeEditor({
   className,
   placeholder,
   value,
+  onChange,
   readonly,
   disabled,
   autoFocus,
-  onChange,
   settings,
+  streamingReadonlyFallback = true,
 }: {
   className?: string;
   placeholder?: string;
   value: string;
+  onChange?: (value: string) => void;
   readonly?: boolean;
   disabled?: boolean;
   autoFocus?: boolean;
-  onChange?: (value: string) => void;
   settings?: unknown;
+  streamingReadonlyFallback?: boolean;
 }) {
   const {
     thread: { isLoading },
@@ -79,7 +81,7 @@ export function CodeEditor({
         className,
       )}
     >
-      {isLoading ? (
+      {isLoading && streamingReadonlyFallback ? (
         <Textarea
           className={cn(
             "h-full overflow-auto font-mono [&_.cm-editor]:h-full [&_.cm-focused]:outline-none!",