feat(web): one date standard across the UI — "25 Qer 14:30"

Dates were a mix: catalog-formatted "25 Qershor 20:01" where screens used
formatRelativeDateTime, and browser-locale "7/6/2026, 9:34 AM" in ~20
places that called raw toLocaleString/-Date-/-Time-String. Unified:

- common.monthsShort in both catalogs (Jan/Shk/…/Qer/Korr/…/Dhj);
  formatDate ("25 Qer", year only when not current), formatDateTime
  ("25 Qer 14:30", optional seconds), formatClock ("HH:mm", 24h) in
  lib/format.ts. formatRelativeDateTime keeps Sot/Dje and switches its
  older-dates branch to the same short months.
- Every raw toLocale* DATE call swept: shifts X-report line, plan
  effective dates, sub version labels, drawer today feed, snapshot
  tooltips, device footer checkedAt, event-detail timestamp (keeps
  seconds — chain evidence), tariff composer active-since + version
  sidebar. Number toLocaleString (thousand separators) untouched.

The catalogs in this commit also carry the keys for the two follow-up
commits (fee breakdown, composer increment labels).

Claude-Session: https://claude.ai/code/session_01Xcm6ikLgGoCxxHrxtjkk5V

apps/web/src/SubscriptionManager.tsx

@@ -27,6 +27,7 @@ import {
 } from "./api.js";
 import { CARD_PAYMENTS_ENABLED } from "./lib/features.js";
 import { Modal } from "./ui/Modal.js";
+import { formatDateTime, type TFn } from "./lib/format.js";
 
 // Subscription admin. Create/edit/revoke/delete subscriptions + their credentials
 // (card/QR) and bound plates. A SALE is priced by selecting an admin-defined PLAN over
@@ -179,9 +180,9 @@ function daysLabel(days: number[] | undefined, t: (k: string) => string): string
 
 /** A one-line label for a plan VERSION in the correction picker: effective date + its
  *  timeframe summary (or "24/7" when the version has no window). */
-function versionLabel(v: SubscriptionPlan, t: (k: string) => string): string {
+function versionLabel(v: SubscriptionPlan, t: TFn): string {
   const eff = new Date(v.effectiveFrom);
-  const date = Number.isNaN(eff.getTime()) ? v.effectiveFrom : eff.toLocaleString();
+  const date = Number.isNaN(eff.getTime()) ? v.effectiveFrom : formatDateTime(v.effectiveFrom, t);
   const tf = v.timeframes;
   const rules = tf ? `${daysLabel(tf.days, t)} ${hhmm(tf.fromMin)}–${hhmm(tf.toMin)}` : t("subs.allDay");
   return `${date} · ${rules}`;