feat(domains): add custom certificate resolver support

- Extend domain configuration to support custom certificate resolvers
- Add new "custom" certificate type option in domain forms
- Update database schema and validation to include custom certificate resolver
- Implement custom certificate resolver handling in Traefik and Docker domain configurations
- Enhance domain management with more flexible SSL/TLS certificate options

packages/server/src/db/schema/shared.ts

@@ -10,4 +10,5 @@ export const applicationStatus = pgEnum("applicationStatus", [
 export const certificateType = pgEnum("certificateType", [
 	"letsencrypt",
 	"none",
+	"custom",
 ]);