fix: follow up config.patch restarts/docs/tests (#1653)

* fix: land config.patch restarts/docs/tests (#1624) (thanks @Glucksberg)

* docs: update changelog entry for config.patch follow-up (#1653) (thanks @Glucksberg)

ui/src/ui/app-view-state.ts

@@ -74,6 +74,7 @@ export type AppViewState = {
   execApprovalError: string | null;
   configLoading: boolean;
   configRaw: string;
+  configRawOriginal: string;
   configValid: boolean | null;
   configIssues: unknown[];
   configSaving: boolean;
@@ -84,6 +85,7 @@ export type AppViewState = {
   configSchemaLoading: boolean;
   configUiHints: Record<string, unknown>;
   configForm: Record<string, unknown> | null;
+  configFormOriginal: Record<string, unknown> | null;
   configFormMode: "form" | "raw";
   channelsLoading: boolean;
   channelsSnapshot: ChannelsStatusSnapshot | null;

ui/src/ui/views/config.browser.test.ts

@@ -68,6 +68,34 @@ describe("config view", () => {
     expect(saveButton?.disabled).toBe(true);
   });
 
+  it("disables save and apply when raw is unchanged", () => {
+    const container = document.createElement("div");
+    render(
+      renderConfig({
+        ...baseProps(),
+        formMode: "raw",
+        raw: "{\n}\n",
+        originalRaw: "{\n}\n",
+      }),
+      container,
+    );
+
+    const saveButton = Array.from(
+      container.querySelectorAll("button"),
+    ).find((btn) => btn.textContent?.trim() === "Save") as
+      | HTMLButtonElement
+      | undefined;
+    const applyButton = Array.from(
+      container.querySelectorAll("button"),
+    ).find((btn) => btn.textContent?.trim() === "Apply") as
+      | HTMLButtonElement
+      | undefined;
+    expect(saveButton).not.toBeUndefined();
+    expect(applyButton).not.toBeUndefined();
+    expect(saveButton?.disabled).toBe(true);
+    expect(applyButton?.disabled).toBe(true);
+  });
+
   it("switches mode via the sidebar toggle", () => {
     const container = document.createElement("div");
     const onFormModeChange = vi.fn();