refactor(infra) : reorganize docker config into infra/dev and infra/prod

Align project structure with Lesstime: move docker/ to infra/dev/ and
deploy/ to infra/prod/. Update all references in docker-compose,
makefile, CI workflow, Dockerfile, .gitignore and .dockerignore.

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

infra/dev/.env.docker.local

@@ -0,0 +1,35 @@
+DOCKER_APP_NAME=inventory
+DOCKER_PHP_VERSION=8.4.6
+DOCKER_NODE_VERSION=24.12.0
+APP_USER=www-data
+CURRENT_UID=1000
+CURRENT_GID=1000
+
+# PostgreSQL
+POSTGRES_DB=inventory
+POSTGRES_USER=root
+POSTGRES_PASSWORD=root
+#
+# CORS
+CORS_ALLOW_ORIGIN=^https?://(localhost|127\\.0\\.0\\.1)(:[0-9]+)?$
+POSTGRES_PORT=5433
+
+# pgAdmin
+PGADMIN_EMAIL=admin@admin.com
+PGADMIN_PASSWORD=admin
+PGADMIN_PORT=5050
+
+# XDebug
+XDEBUG_CLIENT_HOST=host.docker.internal
+
+# Symfony (pour future migration)
+APP_ENV=dev
+APP_SECRET=changeme_super_secret_key_123456789
+JWT_SECRET_KEY=%kernel.project_dir%/config/jwt/private.pem
+JWT_PUBLIC_KEY=%kernel.project_dir%/config/jwt/public.pem
+JWT_PASSPHRASE=your_jwt_passphrase_change_me
+
+# NestJS
+NESTJS_PORT=3000
+SESSION_SECRET=changeme_session_secret
+CORS_ORIGIN=http://localhost:3001