fix(i18n): localize application workflows

Use stable checklist and interview keys for system copy while preserving user-authored content. Localize creation-tab errors, language selectors, match bands, dates, and selected-CV context.

job-tracker-ui/src/application-workspace-overlay.test.tsx

@@ -233,6 +233,18 @@ test("warns before section navigation would discard application edits", async ()
 
 test("renders shared workspace navigation and progress in Norwegian Bokmål", async () => {
   window.localStorage.setItem("uiLanguage", "nb");
+  mockedApi.get.mockImplementation((url: string) => {
+    if (url === "/jobapplications/42/workspace") return Promise.resolve({ data: {
+      ...overview,
+      nextStep: {
+        key: "prepare-cv",
+        label: "Prepare a CV for this role",
+        reason: "Attach a CV variant tailored to this application.",
+        section: "cv",
+      },
+    } } as any);
+    return Promise.resolve({ data: [] } as any);
+  });
   renderTable("/jobs/42");
 
   expect(await screen.findByRole("tab", { name: "Oversikt" })).toHaveAttribute("aria-selected", "true");
@@ -240,6 +252,7 @@ test("renders shared workspace navigation and progress in Norwegian Bokmål", as
   expect(screen.getByRole("tab", { name: "Søknadsbrev" })).toBeInTheDocument();
   expect(await screen.findByLabelText(/søknadsprogresjon/i)).toBeInTheDocument();
   expect(screen.getByRole("button", { name: /tilbake til søknader/i })).toBeInTheDocument();
+  expect(screen.getByRole("heading", { name: "Forbered en CV for denne stillingen" })).toBeInTheDocument();
 });
 
 test("hydrates list filters, sort and page from a shareable URL", async () => {