Give MultiSelect chips accessible names and start creation fields empty.

Catalog chips now announce Select or Deselect so they are named for assistive tech. Method and value modals open blank; Generate draft inserts the catalog copy that used to be prefilled, and Customize still keeps the section headings.

Co-authored-by: Cursor <cursoragent@cursor.com>

tests/components/CommunicationMethodsScreenPersistence.test.tsx

@@ -63,7 +63,7 @@ function ScreenWithStateProbe({
  * and `buildPublishPayload` for the read side.
  */
 describe("CommunicationMethodsScreen — Add Platform persistence", () => {
-  it("seeds the modal from preset and persists edits + selection on Confirm", async () => {
+  it("starts empty and Generate draft inserts the catalog preset", async () => {
     let latest: CreateFlowState = {};
     render(
       <ScreenWithStateProbe
@@ -82,9 +82,16 @@ describe("CommunicationMethodsScreen — Add Platform persistence", () => {
     const textboxes = within(dialog).getAllByRole("textbox");
     expect(textboxes.length).toBe(3);
     const corePrincipleField = textboxes[0] as HTMLTextAreaElement;
-    // Preset corePrinciple must seed into the first body textarea so the user
-    // edits a real starting point rather than an empty field.
-    expect(corePrincipleField.value.length).toBeGreaterThan(0);
+    expect(corePrincipleField.value).toBe("");
+
+    const generateButtons = within(dialog).getAllByRole("button", {
+      name: "Generate draft",
+    });
+    expect(generateButtons.length).toBe(3);
+    fireEvent.click(generateButtons[0]);
+    expect(corePrincipleField.value).toBe(
+      communicationPresetFor("signal").corePrinciple,
+    );
 
     fireEvent.change(corePrincipleField, { target: { value: "Custom principle" } });
     fireEvent.click(
@@ -466,6 +473,11 @@ describe("CommunicationMethodsScreen — Add Platform persistence", () => {
       screen.getAllByRole("button", { name: /Signal: Encrypted messaging/ })[0],
     );
     const dialog = await screen.findByRole("dialog");
+    for (const button of within(dialog).getAllByRole("button", {
+      name: "Generate draft",
+    })) {
+      fireEvent.click(button);
+    }
     fireEvent.click(within(dialog).getByRole("button", { name: "More options" }));
     fireEvent.click(screen.getByRole("menuitem", { name: "Customize" }));