milestone 32: task-shaped configuration, file mode as a rendering, config status api

admin/src/features/configuration/FileModeNote.tsx

@@ -0,0 +1,17 @@
+import * as stylex from "@stylexjs/stylex";
+import { styles as shared } from "@/ui/styles";
+import { styles } from "./styles";
+
+/**
+ * The short note every file-managed page carries: where the values come from,
+ * and what applies a change to them. It replaces the disabled Save button —
+ * the reader needs the path, not a control that cannot work.
+ */
+export default function FileModeNote({ path }: { path: string | null }) {
+	return (
+		<p {...stylex.props(styles.fileNote)}>
+			These values are loaded from <code {...stylex.props(shared.mono)}>{path ?? "the configuration file"}</code>.
+			Edit that file to change them; most changes need an nxdns restart to take effect.
+		</p>
+	);
+}