feat: implement date display utility across various pages

- Added `useDateDisplayer` hook and `dateDisplayer` function to format dates consistently based on the user's language.
- Updated multiple components and pages in both backoffice and portal applications to utilize the new date display functionality, ensuring proper formatting for dates in lists, tables, and detail views.
- Introduced Ethiopian date formatting for Amharic language support.
- Refactored date handling in components such as ExamAppealsPage, ResultPage, SeafarerRegistryPage, and others to improve localization and user experience.

libs/shared/src/lib/date/date-displayer.ts

@@ -0,0 +1,57 @@
+import { ethTimeLabel, toAmharicDisplay } from './ethiopic';
+
+/** Wire values carrying no time of day, e.g. a date column serialised as `2026-08-10`. */
+const DATE_ONLY = /^\d{4}-\d{2}-\d{2}$/;
+
+/** Midnight UTC — how backends commonly serialise a plain date column. */
+const UTC_MIDNIGHT = /T00:00:00(\.0+)?Z$/;
+
+/**
+ * The one way a date is shown to a user.
+ *
+ * Timestamps render in the viewer's local timezone — `2026-08-10T06:57:34.507Z`
+ * reads as `Aug 10, 2026 9:57am` in Addis. Values with no real time of day
+ * render as a bare date: a birth date or a licence expiry stamped `12:00am`
+ * reads as precision the data does not have. Those are also formatted in UTC,
+ * because parsing `2026-08-10` yields UTC midnight, and converting that to a
+ * behind-UTC local timezone would show the previous day.
+ *
+ * `language` is a parameter rather than read from i18next because each app runs
+ * a DEDICATED i18n instance, not the global singleton (see `app/i18n/config.ts`)
+ * — the same reason `localized()` in licensing.helpers.ts takes one. Components
+ * should not call this directly; use `useDateDisplayer()` so the text actually
+ * re-renders when the language changes.
+ */
+export function dateDisplayer(
+  value: string | number | Date | null | undefined,
+  language = 'en',
+): string {
+  if (value === null || value === undefined || value === '') return '—';
+
+  const date = new Date(value);
+  if (Number.isNaN(date.getTime())) return '—';
+
+  const dateOnly =
+    typeof value === 'string' && (DATE_ONLY.test(value) || UTC_MIDNIGHT.test(value));
+
+  if (language.startsWith('am')) {
+    const day = toAmharicDisplay(date); // ሐምሌ 22/2018
+    return dateOnly ? day : `${day} - ${ethTimeLabel(date)}`;
+  }
+
+  const day = date.toLocaleDateString('en-US', {
+    month: 'short',
+    day: 'numeric',
+    year: 'numeric',
+    ...(dateOnly ? { timeZone: 'UTC' } : {}),
+  });
+  if (dateOnly) return day;
+
+  // Intl gives "9:57 AM"; the house format is "9:57am".
+  const time = date
+    .toLocaleTimeString('en-US', { hour: 'numeric', minute: '2-digit' })
+    .replace(' ', '')
+    .toLowerCase();
+
+  return `${day} ${time}`;
+}