fix[domains]: Add CDN provider detection with dynamic display names

Implements generic CDN detection service supporting Cloudflare, Fastly,
and Bunny CDN. Replaces hardcoded "Behind Cloudflare" text with
dynamic provider names and adds IP range validation for comprehensive
CDN detection.

apps/dokploy/components/dashboard/application/domains/show-domains.tsx

@@ -119,6 +119,7 @@ export const ShowDomains = ({ id, type }: Props) => {
 					isValid: result.isValid,
 					error: result.error,
 					resolvedIp: result.resolvedIp,
+					cdnProvider: result.cdnProvider,
 					message: result.error && result.isValid ? result.error : undefined,
 				},
 			}));
@@ -355,7 +356,7 @@ export const ShowDomains = ({ id, type }: Props) => {
 																		<>
 																			<CheckCircle2 className="size-3 mr-1" />
 																			{validationState.message
-																				? "Behind Cloudflare"
+																				? `Behind ${validationState.cdnProvider}`
 																				: "DNS Valid"}
 																		</>
 																	) : validationState?.error ? (