fix(ui,i18n): E30 review round 2 — honest bio failure, a full show summary, one HU name per thing

- Person page: a bio ask that fails says so with a retry instead of reading as 'no biography'.
- Show page: the summary is a ClampedText (5 lines + More), like the person and collection pages;
  one More/Less pair (plex.textMore/textLess) for all three.
- Channels: a re-slotted row is placed in the language the server orders by (the stored
  preference, else English), not the UI's guess.
- A skipped run's body is only the reason (its title already says skipped).
- HU: Behúzási kvótatartalék; Eseménynapló ürítve / az eseménynaplót; indok; közvetlenül
  játszható / közvetlen közvetítés in the Plex hints.
- Tests: ClampedText re-measures on a resize, the show summary clamp, serverOrderLang.

frontend/src/lib/saveLanguage.ts

@@ -1,4 +1,5 @@
 import type { QueryClient } from "@tanstack/react-query";
+import { isSupported } from "../i18n";
 import { api } from "./api";
 import { LANGUAGE_ORDERED } from "./queryKeys";
 
@@ -9,3 +10,11 @@ export async function saveLanguage(qc: QueryClient, code: string): Promise<void>
   await api.savePrefs({ language: code });
   for (const queryKey of LANGUAGE_ORDERED) void qc.invalidateQueries({ queryKey });
 }
+
+/** The language the server orders this account's lists in (backend `mailtext.lang_for_user`): the
+ *  stored preference, else English. Not always the UI's — a browser-detected language, or one picked
+ *  while signed out, is never stored — so a list re-slotted here to match the server's order uses it. */
+export function serverOrderLang(preferences: Record<string, unknown> | null | undefined): string {
+  const lang = preferences?.language;
+  return typeof lang === "string" && isSupported(lang) ? lang : "en";
+}