fix(vscode): hide Save-as-plan and Add-to-notes actions in VS Code runtime

Both flows write into ~/.config/openchamber which isn't reachable from the
VS Code webview, so the buttons were dead weight there.

packages/ui/src/components/chat/message/MessageBody.tsx

@@ -1498,6 +1498,7 @@ const AssistantMessageBody: React.FC<Omit<MessageBodyProps, 'isUser'>> = ({
                      </TooltipTrigger>
                      <TooltipContent sideOffset={6}>{isSharing ? 'Saving image...' : 'Save as image'}</TooltipContent>
                  </Tooltip>
+                {!isVSCodeRuntime() ? (
                     <Tooltip delayDuration={1000}>
                         <TooltipTrigger asChild>
                             <Button
@@ -1517,6 +1518,7 @@ const AssistantMessageBody: React.FC<Omit<MessageBodyProps, 'isUser'>> = ({
                         </TooltipTrigger>
                         <TooltipContent sideOffset={6}>Save as plan</TooltipContent>
                     </Tooltip>
+                ) : null}
                 <Tooltip delayDuration={1000}>
                     <TooltipTrigger asChild>
                         <Button

packages/ui/src/components/chat/message/TextSelectionMenu.tsx

@@ -11,6 +11,7 @@ import { copyTextToClipboard } from '@/lib/clipboard';
 import { toast } from '@/components/ui';
 import { getProjectNotesAndTodos, saveProjectNotesAndTodos } from '@/lib/openchamberConfig';
 import { summarizeText } from '@/lib/voice/summarize';
+import { isVSCodeRuntime } from '@/lib/desktop';
 
 interface TextSelectionMenuProps {
   containerRef: React.RefObject<HTMLElement | null>;
@@ -628,6 +629,7 @@ export const TextSelectionMenu: React.FC<TextSelectionMenuProps> = ({ containerR
           <span>Copy</span>
         </button>
 
+        {!isVSCodeRuntime() ? (
           <button
             onClick={handleAddToNotes}
             disabled={isAddingToNotes}
@@ -643,6 +645,7 @@ export const TextSelectionMenu: React.FC<TextSelectionMenuProps> = ({ containerR
             {isAddingToNotes ? <RiLoader4Line className="h-5 w-5 animate-spin" /> : <RiBookletLine className="h-5 w-5" />}
             <span>Add to notes</span>
           </button>
+        ) : null}
       </div>,
       document.body
     );
@@ -703,6 +706,8 @@ export const TextSelectionMenu: React.FC<TextSelectionMenuProps> = ({ containerR
           <span className="whitespace-nowrap">New session</span>
         </button>
 
+        {!isVSCodeRuntime() ? (
+          <>
             <div className="w-px h-4 bg-[var(--interactive-border)]" />
 
             <button
@@ -721,6 +726,8 @@ export const TextSelectionMenu: React.FC<TextSelectionMenuProps> = ({ containerR
               {isAddingToNotes ? <RiLoader4Line className="h-4 w-4 animate-spin" /> : <RiBookletLine className="h-4 w-4" />}
               <span className="whitespace-nowrap">Add to notes</span>
             </button>
+          </>
+        ) : null}
       </div>
     </div>,
     document.body