feat(quick-pane): persist default thinking level

ui/src/components/ThinkingSelector.tsx

@@ -4,6 +4,7 @@ import "./ThinkingSelector.css";
 
 type ThinkingSelectorProps = {
   model?: Model;
+  label?: string;
   value: string;
   disabled?: boolean;
   className?: string;
@@ -13,6 +14,7 @@ type ThinkingSelectorProps = {
 
 export function ThinkingSelector({
   model,
+  label = "Thinking",
   value,
   disabled = false,
   className,
@@ -24,10 +26,10 @@ export function ThinkingSelector({
 
   return (
     <label className={classes}>
-      <span>Thinking</span>
+      <span>{label}</span>
       <select
         className={controlClassName}
-        aria-label="Thinking"
+        aria-label={label}
         value={selected}
         disabled={disabled}
         onChange={(event) => onChange(event.currentTarget.value)}