Fix Redis session DSN, remove LibreTranslate from prod, track all translations

- Fix SESSION_HANDLER_DSN: use Redis db index (/1) instead of /sessions
  which caused "dbindex must be a number" error
- Remove LibreTranslate service and volume from docker-compose prod
- Remove gitignore rules for translation files (en, es, de, it)
  so all languages are tracked in git
- Apply PHP CS Fixer style fixes

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

.env

@@ -33,7 +33,7 @@ MESSENGER_TRANSPORT_DSN=redis://redis:6379/messages
 ###< symfony/messenger ###
 
 ###> session ###
-SESSION_HANDLER_DSN=redis://redis:6379/sessions
+SESSION_HANDLER_DSN=redis://redis:6379/1
 ###< session ###
 
 ###> symfony/mailer ###

.env.test

@@ -12,6 +12,6 @@ STRIPE_WEBHOOK_SECRET=whsec_test
 STRIPE_WEBHOOK_SECRET_CONNECT=whsec_test_connect
 OUTSIDE_URL=https://test.example.com
 MESSENGER_TRANSPORT_DSN=redis://:e_ticket@redis:6379/messages
-SESSION_HANDLER_DSN=redis://:e_ticket@redis:6379/sessions
+SESSION_HANDLER_DSN=redis://:e_ticket@redis:6379/1
 SMIME_PASSPHRASE=test
 ADMIN_EMAIL=contact@test.com

.gitignore

@@ -27,13 +27,6 @@ node_modules/
 /coverage/
 /coverage-clover.xml
 
-###> translations (auto-generated, only FR is source) ###
-/translations/*.en.yaml
-/translations/*.es.yaml
-/translations/*.de.yaml
-/translations/*.it.yaml
-###< translations ###
-
 ###> friendsofphp/php-cs-fixer ###
 /.php-cs-fixer.php
 /.php-cs-fixer.cache

ansible/docker-compose-prod.yml.j2

@@ -134,20 +134,6 @@ services:
       - meilisearch-data:/meili_data
     networks:
       - e-ticket
-  libretranslate:
-    image: libretranslate/libretranslate:latest
-    restart: "no"
-    environment:
-      LT_LOAD_ONLY: fr,en,es,de,it
-      LT_DISABLE_WEB_UI: "true"
-    volumes:
-      - libretranslate-data:/home/libretranslate/.local
-    healthcheck:
-      test: ["CMD-SHELL", "curl -sf http://localhost:5000/languages || exit 1"]
-      interval: 10s
-      timeout: 5s
-      retries: 10
-      start_period: 120s
 networks:
   e-ticket:
     driver: bridge
@@ -157,4 +143,3 @@ volumes:
   db-slave-data:
   redis-data:
   meilisearch-data:
-  libretranslate-data: