v1.8.96: persist sidebar width across restarts

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

gui/app.py

@@ -125,7 +125,7 @@ class App(ctk.CTk):
 
         # Sidebar
         self.sidebar = Sidebar(self._paned, self.store, on_select=self._on_server_select, session_pool=self.session_pool)
-        self._paned.add(self.sidebar, minsize=180, width=250)
+        self._paned.add(self.sidebar, minsize=180, width=self.store._sidebar_width)
         self.sidebar.add_callback = self._add_server
         self.sidebar.edit_callback = self._edit_server
         self.sidebar.delete_callback = self._delete_server
@@ -647,9 +647,16 @@ class App(ctk.CTk):
             pass
 
     def _on_close(self):
-        # Save window geometry (size + position)
+        # Save window geometry (size + position) and sidebar width
         try:
             self.store._window_geometry = self.geometry()
+            # Save sidebar width from PanedWindow sash position
+            try:
+                sash_pos = self._paned.sash_coord(0)
+                if sash_pos:
+                    self.store._sidebar_width = sash_pos[0]
+            except Exception:
+                pass
             self.store._save_settings()
         except Exception:
             pass