i18n(reports): wrap Anul curent + auto-translate specialization tokens

- Reports.php periods() had 'this_year' hardcoded; now wrapped in __()
- masters tab specialization cell: split by '/' and __()-translate each
  token so 'Motor / Cutie viteze' auto-renders as «Двигатель / КПП»
  on RU (and 'Engine / Gearbox' on EN). Users can enter any free-text
  specialisation; the common keywords now have RU/EN translations.
- +12 specialisation vocabulary entries (Motor, Frâne, Suspensie,
  Anvelope, Cutie viteze, Electrică, Diagnosticare, Vopsitorie,
  Tinichigerie, Aer condiționat, Roți, Ambreiaj).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

resources/views/filament/tenant/pages/reports.blade.php

@@ -179,7 +179,7 @@
                         @forelse ($data['rows'] as $r)
                             <tr>
                                 <td class="rp-bold">{{ $r['name'] }}</td>
-                                <td style="color:#6b7280">{{ $r['specialization'] ?? '—' }}</td>
+                                <td style="color:#6b7280">{{ $r['specialization'] ? implode(' / ', array_map(fn($p) => __(trim($p)), explode('/', $r['specialization']))) : '—' }}</td>
                                 <td class="rp-right">{{ $r['works'] }}</td>
                                 <td class="rp-right">{{ number_format($r['hours'], 1) }}</td>
                                 <td class="rp-right rp-bold rp-success">{{ number_format($r['revenue'], 2, '.', ' ') }}</td>