Add Crowdsec integration to Traefik

Configuration changes:
- Enable Traefik experimental plugins support
- Add Crowdsec bouncer plugin (maxlerebourg v1.3.3)
- Configure Crowdsec middleware in config.yml
- Connect Traefik to Crowdsec network
- Add IP whitelist middleware for internal network
- Update .gitignore to exclude crowdsec directory

Security enhancements:
- All routes now protected by Crowdsec threat intelligence
- Internal network IP whitelist for Traefik dashboard
- Crowdsec monitors all Traefik access logs
- Real-time blocking of malicious IPs

Protected services:
- Mealie (recipes.pkartchner.com)
- Gogs (git.pkartchner.com)
- Traefik Dashboard (internal network only)

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

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

.gitignore

@@ -15,3 +15,4 @@ Thumbs.db
 *.swp
 *.swo
 *~
+crowdsec/