Fix LibreTranslate timeout: increase wait to 3min, add Ansible healthcheck wait

- TranslateCommand: increase waitForApi retries from 30 to 90 (3 minutes total)
- Ansible deploy: add explicit healthcheck wait step (60×5s = 5min max) before translation
- First launch downloads ~2-4GB of language models, needs more time

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ansible/deploy.yml

@@ -135,6 +135,16 @@
       args:
         chdir: /var/www/e-ticket
 
+    - name: Wait for LibreTranslate to be healthy
+      shell: |
+        for i in $(seq 1 60); do
+          docker compose -f docker-compose-prod.yml exec -T libretranslate curl -sf http://localhost:5000/languages >/dev/null 2>&1 && exit 0
+          sleep 5
+        done
+        exit 1
+      args:
+        chdir: /var/www/e-ticket
+
     - name: Translate YAML files (FR → EN/ES/DE/IT) and stop LibreTranslate
       command: make trans_prod
       args: