Post-merge fixes: remove duplicate IncomingCallNotification, restore PiP touch drag + grip dots, show redacted message content

- Router.tsx: remove IncomingCallNotification (CallEmbedProvider.IncomingCallListener now handles all calls)
- CallEmbedProvider: restore touch drag (handlePipTouchStart), grip dots on resize handles, fix normaliseToTopLeft width/height
- FallbackContent/MsgTypeRenderers: add originalBody prop to show struck-through original text on deleted messages
- RoomTimeline: cache text message bodies so they can be shown after redaction

src/app/features/room/RoomTimeline.tsx

@@ -506,6 +506,8 @@ export function RoomTimeline({ room, eventId, roomInputRef, editor }: RoomTimeli
     smooth: true,
   });
 
+  const redactedBodyCache = useRef<Map<string, string>>(new Map());
+
   const [focusItem, setFocusItem] = useState<
     | {
         index: number;
@@ -1035,6 +1037,14 @@ export function RoomTimeline({ room, eventId, roomInputRef, editor }: RoomTimeli
         const getContent = (() =>
           editedEvent?.getContent()['m.new_content'] ?? mEvent.getContent()) as GetContentCallback;
 
+        // Cache body before it can be stripped by redaction
+        if (!mEvent.isRedacted()) {
+          const c = mEvent.getContent();
+          if (c.body && ['m.text', 'm.notice', 'm.emote'].includes(c.msgtype ?? '')) {
+            redactedBodyCache.current.set(mEventId, c.body);
+          }
+        }
+
         const senderId = mEvent.getSender() ?? '';
         const senderDisplayName =
           getMemberDisplayName(room, senderId) ?? getMxIdLocalPart(senderId) ?? senderId;
@@ -1096,7 +1106,10 @@ export function RoomTimeline({ room, eventId, roomInputRef, editor }: RoomTimeli
             dateFormatString={dateFormatString}
           >
             {mEvent.isRedacted() ? (
-              <RedactedContent reason={mEvent.getUnsigned().redacted_because?.content.reason} />
+              <RedactedContent
+                reason={mEvent.getUnsigned().redacted_because?.content.reason}
+                originalBody={redactedBodyCache.current.get(mEventId)}
+              />
             ) : (
               <RenderMessageContent
                 displayName={senderDisplayName}