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>

docker-compose-dev.yml

@@ -72,6 +72,17 @@ services:
       redis:
         condition: service_healthy
 
+  bun:
+    image: oven/bun:alpine
+    container_name: e-ticket_bun
+    working_dir: /app
+    volumes:
+      - .:/app
+      - bun-modules:/app/node_modules
+    command: sh -c "bun install && bun run dev"
+    ports:
+      - "5173:5173"
+
   mailpit:
     image: axllent/mailpit
     container_name: e-ticket_mailpit
@@ -91,3 +102,4 @@ services:
 volumes:
   db-data:
   redis-data:
+  bun-modules: