feat: add ByteStash service for code snippet management

- Add ByteStash Docker service configuration and deployment
- Configure subdomain routing through Caddy
- Add DNS record for ByteStash subdomain
- Update development service category to include ByteStash

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

roles/docker/templates/bytestash-compose.yml.j2

@@ -0,0 +1,37 @@
+services:
+  bytestash:
+    image: ghcr.io/jordan-dalby/bytestash:latest
+    container_name: bytestash
+    restart: unless-stopped
+    volumes:
+      - bytestash_data:/data/snippets
+    environment:
+      JWT_SECRET: "{{ vault_bytestash.jwt_secret }}"
+      TOKEN_EXPIRY: "24h"
+      ALLOW_NEW_ACCOUNTS: "true"
+      DEBUG: "false"
+      DISABLE_ACCOUNTS: "false"
+      DISABLE_INTERNAL_ACCOUNTS: "false"
+      OIDC_ENABLED: "true"
+      OIDC_DISPLAY_NAME: "Login with Authentik"
+      OIDC_ISSUER_URL: "https://{{ subdomains.auth }}/application/o/bytestash/"
+      OIDC_CLIENT_ID: "{{ vault_bytestash.oidc_client_id }}"
+      OIDC_CLIENT_SECRET: "{{ vault_bytestash.oidc_client_secret }}"
+      OIDC_SCOPES: "openid profile email"
+    extra_hosts:
+      - "{{ subdomains.auth }}:{{ docker.hairpin_ip }}"
+    labels:
+      glance.name: ByteStash
+      glance.icon: si:code
+      glance.url: https://{{ subdomains.bytestash }}/
+      glance.description: Code snippet manager
+      glance.id: bytestash
+
+volumes:
+  bytestash_data:
+    driver: local
+
+networks:
+  default:
+    external: true
+    name: {{ docker.network_name }}

roles/docker/templates/codeserver-compose.yml.j2

@@ -7,6 +7,7 @@ services:
       glance.icon: si:vscodium
       glance.url: https://{{ subdomains.code }}/
       glance.description: Code Server
+      mag37.dockcheck.update: true
     container_name: codeserver
     volumes:
       - home:/home