add embedded mode to BaseSection so parents can host the save action

web/src/components/config-form/sections/BaseSection.tsx

@@ -175,6 +175,9 @@ export interface BaseSectionProps {
   isSavingAll?: boolean;
   /** Callback when this section's saving state changes */
   onSavingChange?: (isSaving: boolean) => void;
+  /** When true, render the form fields only; suppress the internal save/undo bar.
+   *  The parent owns the save action and reads pending data via `onPendingDataChange`. */
+  embedded?: boolean;
 }
 
 export interface CreateSectionOptions {
@@ -211,6 +214,7 @@ export function ConfigSection({
   onDeleteProfileSection,
   isSavingAll = false,
   onSavingChange,
+  embedded = false,
 }: ConfigSectionProps) {
   // For replay level, treat as camera-level config access
   const effectiveLevel = level === "replay" ? "camera" : level;
@@ -1048,6 +1052,7 @@ export function ConfigSection({
         }}
       />
 
+      {!embedded && (
         <div
           className={cn(
             "w-full border-t border-secondary bg-background pt-0",
@@ -1163,6 +1168,7 @@ export function ConfigSection({
             </div>
           </div>
         </div>
+      )}
 
       <AlertDialog open={isResetDialogOpen} onOpenChange={setIsResetDialogOpen}>
         <AlertDialogContent>