feat: rename sessions inline via double-click (#1320)

* feat: rename sessions inline via double-click

Double-clicking a session name in the sidebar or the mobile session
status bar now switches it into an inline editable input. Enter saves,
Esc cancels, and clicking elsewhere blurs the input to save. This
mirrors the VSCode/Finder rename pattern and removes the need to open
the session menu for what is a very common action.

* fix(rename): close sidebar input on empty title; drop duplicate mobile editor

Two issues from PR review:

1. handleSaveEdit (sidebar) only closed the input when editTitle.trim()
   was non-empty. Clearing the title and pressing Enter or blurring left
   the input open with no exit path other than Escape. The save handler
   now always closes the editor; an empty title is treated as a silent
   cancel (no update call).

2. ExpandedView (mobile) renders the current session twice — once in the
   sticky header, once in the session list — so a single editingSessionId
   produced two simultaneous inputs for the current session. The list row
   for the current session now suppresses its rename input; the header
   remains the single editor in that case.

* fix: refine inline session rename editing

---------

Co-authored-by: Bohdan Triapitsyn <artmore@protonmail.com>

packages/ui/src/components/session/sidebar/SessionNodeItem.tsx

@@ -62,7 +62,7 @@ type Props = {
   handleCancelEdit: () => void;
   toggleParent: (expansionKey: string) => void;
   handleSessionSelect: (sessionId: string, sessionDirectory: string | null, isMissingDirectory: boolean, projectId?: string | null) => void;
-  handleSessionDoubleClick: () => void;
+  handleSessionDoubleClick: (sessionId: string, sessionTitle: string) => void;
   togglePinnedSession: (sessionId: string) => void;
   handleShareSession: (session: Session) => void;
   copiedSessionId: string | null;
@@ -284,6 +284,7 @@ function SessionNodeItemComponent(props: Props): React.ReactNode {
         : (showQuickArchiveAction ? 'group-hover:pr-12 group-focus-within:pr-12' : 'group-hover:pr-5 group-focus-within:pr-5'));
   const alwaysActionPaddingClass = showQuickArchiveAction ? 'pr-13' : 'pr-7';
   const suppressNextSelectRef = React.useRef(false);
+  const editCancelledRef = React.useRef(false);
   const [isTouchPressed, setIsTouchPressed] = React.useState(false);
 
   const session = node.session;
@@ -470,6 +471,7 @@ function SessionNodeItemComponent(props: Props): React.ReactNode {
               onKeyDown={(event) => {
                 if (event.key === 'Escape') {
                   event.stopPropagation();
+                  editCancelledRef.current = true;
                   handleCancelEdit();
                   return;
                 }
@@ -477,6 +479,13 @@ function SessionNodeItemComponent(props: Props): React.ReactNode {
                   event.stopPropagation();
                 }
               }}
+              onBlur={() => {
+                if (editCancelledRef.current) {
+                  editCancelledRef.current = false;
+                  return;
+                }
+                handleSaveEdit();
+              }}
             />
             <button
               type="submit"
@@ -824,7 +833,7 @@ function SessionNodeItemComponent(props: Props): React.ReactNode {
 	                    onClick={(event) => handleRowSelect(event)}
                     onDoubleClick={(e) => {
                       e.stopPropagation();
-                      handleSessionDoubleClick();
+                      handleSessionDoubleClick(session.id, sessionTitle);
                     }}
                     className={cn(
 	                      'flex min-w-0 flex-1 cursor-pointer flex-col gap-0 overflow-hidden rounded-sm text-left focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-primary/50 text-foreground select-none disabled:cursor-not-allowed transition-[padding]',
@@ -888,7 +897,7 @@ function SessionNodeItemComponent(props: Props): React.ReactNode {
 	                onClick={(event) => handleRowSelect(event)}
                 onDoubleClick={(e) => {
                   e.stopPropagation();
-                  handleSessionDoubleClick();
+                  handleSessionDoubleClick(session.id, sessionTitle);
                 }}
                 className={cn(
 	                  'flex min-w-0 flex-1 cursor-pointer flex-col gap-0 overflow-hidden rounded-sm text-left focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-primary/50 text-foreground select-none disabled:cursor-not-allowed transition-[padding]',

packages/ui/src/components/session/sidebar/hooks/useSessionActions.ts

@@ -98,16 +98,19 @@ export const useSessionActions = (args: Args) => {
     [args],
   );
 
-  const handleSessionDoubleClick = React.useCallback(() => {
-    args.setActiveMainTab('chat');
+  const handleSessionDoubleClick = React.useCallback((sessionId: string, sessionTitle: string) => {
+    args.setEditingId(sessionId);
+    args.setEditTitle(sessionTitle);
   }, [args]);
 
   const handleSaveEdit = React.useCallback(async () => {
-    if (args.editingId && args.editTitle.trim()) {
-      await args.updateSessionTitle(args.editingId, args.editTitle.trim());
-      args.setEditingId(null);
-      args.setEditTitle('');
+    if (!args.editingId) return;
+    const trimmed = args.editTitle.trim();
+    if (trimmed) {
+      await args.updateSessionTitle(args.editingId, trimmed);
     }
+    args.setEditingId(null);
+    args.setEditTitle('');
   }, [args]);
 
   const handleCancelEdit = React.useCallback(() => {