Add deployment pipeline, maintenance page and project config

- Makefile: install_dev, install_prod, migration/migrate commands
- docker-compose-dev: add Caddy and Bun services
- docker-compose-prod: remove exposed pgbouncer port
- Ansible: Caddy template with maintenance mode (503), vault, deploy playbook
- Gitea workflow: manual deploy to production
- Maintenance page (Neubrutalism style)
- LICENSE: proprietary license

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

Makefile

@@ -25,3 +25,23 @@ purge_dev: ## Arrete et purge les containers dev (volumes inclus)
 
 stop_prod: ## Arrete les containers prod
 	docker compose -f docker-compose-prod.yml down
+
+## —— Install ——————————————————————————————————————
+install_dev: ## Install les dependances dev via Docker
+	docker compose -f docker-compose-dev.yml exec php composer install
+	docker compose -f docker-compose-dev.yml exec bun bun install
+
+install_prod: ## Install les dependances et build les assets pour la prod
+	composer install --no-dev --optimize-autoloader
+	bun install
+	bun run build
+
+## —— Database ——————————————————————————————————————
+migration_dev: ## Genere une migration via Docker dev
+	docker compose -f docker-compose-dev.yml exec php php bin/console make:migration
+
+migrate_dev: ## Execute les migrations via Docker dev
+	docker compose -f docker-compose-dev.yml exec php php bin/console doctrine:migrations:migrate --no-interaction
+
+migrate_prod: ## Execute les migrations en prod via Docker
+	docker compose -f docker-compose-prod.yml exec php php bin/console doctrine:migrations:migrate --no-interaction --env=prod