feat(i18n): convert 38 hardcoded static labels + safe blade wrap + 226 keys

- Convert all remaining static \$modelLabel/\$pluralModelLabel to getter
  methods with __() (AppointmentResource, WorkOrderResource, MasterResource,
  ServiceTemplateResource, LaborResource, and 33 others)
- Safe blade wrap v2 (37 files, 201 wraps): fixed the regex to not match
  `->`, `=>`, `!<` — previous aggressive pass broke @if directives
- Bulk-translate lowercase model-label keys (programări, fișe lucru,
  tehnicieni, șabloane servicii, norme-ore, etc.) — these were the RO
  strings appearing in page titles/breadcrumbs
- Add human RU/EN for mechanic-kpi (Mecanic/Lucrări/Norma ore/etc.)
  and calendar-board words

Tests 306 green. Blade compiles cleanly.

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

resources/views/filament/tenant/ai-reply.blade.php

@@ -16,9 +16,9 @@
 
     @if (! $isError && ($provider || $tokensIn !== null))
         <div class="text-xs text-gray-500 dark:text-gray-400 border-t border-gray-200 dark:border-gray-700 pt-2 flex flex-wrap gap-3">
-            @if ($provider) <span>Provider: <strong>{{ strtoupper($provider) }}</strong></span> @endif
+            @if ($provider) <span>{{ __('Provider:') }} <strong>{{ strtoupper($provider) }}</strong></span> @endif
             @if ($tokensIn !== null || $tokensOut !== null)
-                <span>Tokens: <strong>{{ ($tokensIn ?? 0) + ($tokensOut ?? 0) }}</strong> ({{ $tokensIn ?? 0 }} in / {{ $tokensOut ?? 0 }} out)</span>
+                <span>{{ __('Tokens:') }} <strong>{{ ($tokensIn ?? 0) + ($tokensOut ?? 0) }}</strong> ({{ $tokensIn ?? 0 }} in / {{ $tokensOut ?? 0 }} out)</span>
             @endif
             @if ($latency !== null) <span>Latency: {{ $latency }} ms</span> @endif
         </div>