feat: finish the remote-desktop plugin (B14)

src/ui/settings/settings-fields-util.ts

@@ -1,7 +1,8 @@
 import type { PluginSettingsField } from "@/api/plugins-api";
 
 /**
- * Whether a field's `requires` gate is satisfied.
+ * Whether the generic form draws a field: not hidden (the plugin edits it in
+ * its own UI) and its `requires` gate satisfied.
  *
  * Kept out of the component file so both the settings page and the host editor
  * section can import it without dragging a component along.
@@ -10,6 +11,12 @@ export function isFieldActive(
   field: PluginSettingsField,
   values: Record<string, unknown>,
 ): boolean {
+  if (field.hidden) return false;
   if (!field.requires) return true;
   return values[field.requires] === true;
 }
+
+/** Whether a plugin has any field the generic form would ever draw. */
+export function hasVisibleFields(fields: PluginSettingsField[]): boolean {
+  return fields.some((field) => !field.hidden);
+}