feat(dns): setup cloudflared tunnel and DNS records

cloudflare/services/output.tf

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+output "services" {
+  description = "TODO"
+  value       = local.services
+}

cloudflare/services/services.tf

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+locals {
+ services = {
+    homer = {
+      subdomain = "home"
+      service   = "http://192.168.0.101:8888"
+      policy    = "allow_myself_and_family"
+    },
+    gitea = {
+      subdomain = "git"
+      service   = "http://192.168.0.101:3000"
+      policy    = "allow_everyone"
+    }
+  }
+}