feat(i18n): the server's closed English vocabularies named in the reader's language (E30 S2)

- lib/vocab + the `vocab` locale area: TMDB crew jobs and departments, auto-tags (D1 A: the data
  stays English, the catalog is named at its one source, useTags), built-in download profiles,
  YouTube topics; held key-for-key to the backend's own lists by backendIds.contract.
- Countries by ISO code: TMDB parse stores {code, name}; rows stored before are coded from TMDB's
  own country list in one request (run_enrich); Intl names them, historic codes (YU, SU, XI…)
  from the catalog.
- Player tracks named from the language tag, forced/SDH flags and codec tail, not Plex's
  server-language displayTitle; no invented "Audio N" on the server.
- Download lifecycle notices (shared / expiring / expired / evicted) named from data; the share
  notice carries the title.
- Scheduler: the job result rides along as data and is named per key (dashboard + run notice).
- Invite status named; a render crash's notice no longer shows the engine's English message.
- Fix: YouTube links …/wiki/Humour, the tagger looked for "Humor" — Comedy never came from a topic.

frontend/src/components/Scheduler.dom.test.tsx

@@ -32,6 +32,7 @@ const status = (over: Partial<SchedulerStatus> = {}): SchedulerStatus => ({
       last_started: null,
       last_finished: null,
       last_result: null,
+      result: null,
       last_error: null,
       progress: null,
     },
@@ -258,3 +259,25 @@ describe("Scheduler while paused (E28 audit F13)", () => {
     expect(runOne).not.toHaveBeenCalled();
   });
 });
+
+describe("a job's last result (E30)", () => {
+  it("is named from its data, not the server's English one-liner", async () => {
+    const base = status();
+    await mount({
+      ...base,
+      jobs: [
+        {
+          ...base.jobs[0]!,
+          last_finished: new Date().toISOString(),
+          last_result: "new=3, failed=0",
+          result: { new: 3, failed: 0 },
+        },
+      ],
+    });
+    // Key-echo i18n: the keys named, the counts shown.
+    expect(
+      await screen.findByText(/scheduler\.result\.new: 3 · scheduler\.result\.failed: 0/),
+    ).toBeTruthy();
+    expect(screen.queryByText(/new=3/)).toBeNull();
+  });
+});