p0: hide invalid delete action for channel members

docs/core-checklist-status.md

@@ -20,7 +20,7 @@ Legend:
 11. Forwarding - `PARTIAL` (single + bulk; "without author" missing)
 12. Pinning - `DONE` (message/chat pin-unpin)
 13. Reactions - `DONE`
-14. Delivery Status - `DONE` (sent/delivered/read)
+14. Delivery Status - `DONE` (sent/delivered/read + reconnect reconciliation after backend restarts)
 15. Typing Realtime - `PARTIAL` (typing start/stop done; voice/video typing signals limited)
 16. Media & Attachments - `DONE` (upload/preview/download/gallery)
 17. Voice Messages - `PARTIAL` (record/send/play/seek/speed; UX still being polished)
@@ -38,9 +38,9 @@ Legend:
 29. Archive - `DONE`
 30. Blacklist - `DONE`
 31. Privacy - `PARTIAL` (PM permission + block; full matrix controls still limited)
-32. Security - `PARTIAL` (sessions + revoke + 2FA base; UX/TOTP flow ongoing)
+32. Security - `PARTIAL` (sessions + revoke + 2FA base; revoke-all now invalidates active access tokens, UX/TOTP flow ongoing)
 33. Realtime Events - `DONE` (connect/disconnect/send/receive/typing/read/delivered/online/offline + chat/message updates)
-34. Sync - `PARTIAL` (cross-device via backend state + realtime; offline reconciliation basic)
+34. Sync - `PARTIAL` (cross-device via backend state + realtime; reconciliation improved for loaded chats/messages)
 35. Additional - `PARTIAL` (drafts/link preview partial/autoload media basic)
 
 ## Current Focus to reach ~80%

web/src/components/MessageList.tsx

@@ -132,6 +132,19 @@ export function MessageList() {
     () => selectedMessages.length > 0 && selectedMessages.every((m) => canDeleteForEveryone(m, activeChat, me?.id)),
     [selectedMessages, activeChat, me?.id]
   );
+  const canDeleteCurrentContextMessage = useMemo(() => {
+    if (!ctx) {
+      return false;
+    }
+    const message = messagesMap.get(ctx.messageId);
+    if (!message) {
+      return false;
+    }
+    if (channelOnlyDeleteForAll) {
+      return canDeleteForEveryone(message, activeChat, me?.id);
+    }
+    return true;
+  }, [ctx, messagesMap, channelOnlyDeleteForAll, activeChat, me?.id]);
 
   useEffect(() => {
     const onKeyDown = (event: KeyboardEvent) => {
@@ -684,16 +697,18 @@ export function MessageList() {
               >
                 Select
               </button>
-              <button
-                className="block w-full rounded px-2 py-1.5 text-left text-sm text-red-300 hover:bg-slate-800"
-                onClick={() => {
-                  setDeleteMessageId(ctx.messageId);
-                  setDeleteError(null);
-                  setCtx(null);
-                }}
-              >
-                Delete
-              </button>
+              {canDeleteCurrentContextMessage ? (
+                <button
+                  className="block w-full rounded px-2 py-1.5 text-left text-sm text-red-300 hover:bg-slate-800"
+                  onClick={() => {
+                    setDeleteMessageId(ctx.messageId);
+                    setDeleteError(null);
+                    setCtx(null);
+                  }}
+                >
+                  Delete
+                </button>
+              ) : null}
               <button className="block w-full rounded px-2 py-1.5 text-left text-sm hover:bg-slate-800" onClick={() => void handlePin(ctx.messageId)}>
                 Pin / Unpin
               </button>