Clean templates, add Caddy dev, Ansible and Gitea config

- Reset templates: clean base.html.twig + new email base template
- Remove old templates (account, legal, security, emails, etc.)
- Add Caddy service to docker-compose-dev
- Add ansible hosts.ini for production deployment
- Add .gitea/CODEOWNERS
- Clean app.scss

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

docker-compose-dev.yml

@@ -46,6 +46,17 @@ services:
       timeout: 5s
       retries: 5
 
+  caddy:
+    image: caddy:2-alpine
+    container_name: e-ticket_caddy
+    ports:
+      - "8000:80"
+    volumes:
+      - ./docker/caddy/Caddyfile:/etc/caddy/Caddyfile
+      - .:/app
+    depends_on:
+      - php
+
   messenger:
     build:
       context: ./docker/php/dev