feat: give plugins their own settings and one settings screen

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

@@ -0,0 +1,15 @@
+import type { PluginSettingsField } from "@/api/plugins-api";
+
+/**
+ * Whether a field's `requires` gate is 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.
+ */
+export function isFieldActive(
+  field: PluginSettingsField,
+  values: Record<string, unknown>,
+): boolean {
+  if (!field.requires) return true;
+  return values[field.requires] === true;
+}