fix: hide reply button on archived channels (#524)

Signed-off-by: Matt Toohey <contact@matttoohey.com>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

desktop/src/features/channels/ui/ChannelPane.tsx

@@ -320,7 +320,7 @@ export const ChannelPane = React.memo(function ChannelPane({
           messages={messages}
           onDelete={onDelete}
           onEdit={onEdit}
-          onReply={onOpenThread}
+          onReply={activeChannel?.archivedAt ? undefined : onOpenThread}
           onTargetReached={onTargetReached}
           onToggleReaction={onToggleReaction}
           searchActiveMessageId={channelFind.activeMatch?.messageId ?? null}

desktop/src/features/channels/ui/ChannelScreen.tsx

@@ -493,9 +493,13 @@ export function ChannelScreen({
                   onCancelThreadReply={handleCancelThreadReply}
                   onCloseAgentSession={handleCloseAgentSession}
                   onCloseThread={handleCloseThread}
-                  onDelete={handleDelete}
-                  onEdit={handleEdit}
-                  onEditSave={handleEditSave}
+                  onDelete={
+                    activeChannel?.archivedAt ? undefined : handleDelete
+                  }
+                  onEdit={activeChannel?.archivedAt ? undefined : handleEdit}
+                  onEditSave={
+                    activeChannel?.archivedAt ? undefined : handleEditSave
+                  }
                   onExpandThreadReplies={handleExpandThreadReplies}
                   onOpenAgentSession={handleOpenAgentSession}
                   onOpenDm={handleOpenDm}