fix(palette): auto-focus input via set_next_window_focus + apply(theme) + try/except for actions

Added imgui.set_next_window_focus() on open so the palette window itself gets focus. The input field then gets focus on the next drawn widget. Wrapped action calls in try/except so a buggy command does not break the imgui.end_child/end pairing (was causing IM_ASSERT crash). Fixed theme_2 calls: apply_dark_theme and apply_light_theme do not exist; use theme_2.apply(palette_name). switch_to_dark_theme uses apply 10x Dark. switch_to_light_theme uses apply ImGui Light. switch_to_nerv_theme uses apply NERV instead of apply_nerv() from src.theme_nerv.

src/command_palette.py

@@ -121,10 +121,9 @@ def render_palette_modal(app: Any, commands: List[Command]) -> None:
  if not hasattr(app, "_command_palette_focused"):
   app._command_palette_focused = False
 
- # Set focus on the input field ONCE per open.
- # set_keyboard_focus_here must be called BEFORE the widget to give it focus.
+ # Set focus on the window + input field ONCE per open.
  if not app._command_palette_focused:
-  imgui.set_keyboard_focus_here()
+  imgui.set_next_window_focus()
   app._command_palette_focused = True
 
  # Escape closes the palette.
@@ -140,6 +139,11 @@ def render_palette_modal(app: Any, commands: List[Command]) -> None:
   imgui.end()
   return
 
+ # After the window is drawn, the input gets focus.
+ if not getattr(app, '_command_palette_input_focused', False):
+  imgui.set_keyboard_focus_here()
+  app._command_palette_input_focused = True
+
  imgui.set_next_item_width(-1)
  _, app._command_palette_query = imgui.input_text("##query", app._command_palette_query)
 
@@ -153,11 +157,16 @@ def render_palette_modal(app: Any, commands: List[Command]) -> None:
    if clicked:
     app._command_palette_selected = i
     if scored.command.action:
-     scored.command.action(app)
+     try:
+      scored.command.action(app)
+     except Exception as e:
+      # Don't let a buggy action break the end_child/end pairing.
+      print(f"[CommandPalette] Action {scored.command.id} raised: {e}")
     app.show_command_palette = False
     app._command_palette_query = ""
     app._command_palette_selected = 0
     app._command_palette_focused = False
+    app._command_palette_input_focused = False
   if not results:
    imgui.text_disabled("No matching commands.")
  imgui.end_child()