truenas deprecation: migrate all non-immich storage to proxmox NFS

- Migrate 7 backup CronJobs to Proxmox host NFS (192.168.1.127)
  (etcd, mysql, postgresql, nextcloud, redis, vaultwarden, plotting-book)
- Migrate headscale backup, ebook2audiobook, osm_routing to Proxmox NFS
- Migrate servarr (lidarr, readarr, soulseek) NFS refs to Proxmox
- Remove 79 orphaned TrueNAS NFS module declarations from 49 stacks
- Delete stacks/platform/modules/ (27 dead module copies, 65MB)
- Update nfs-truenas StorageClass to point to Proxmox (192.168.1.127)
- Remove iscsi DNS record from config.tfvars
- Fix woodpecker persistence config and alertmanager PV

Only Immich (8 PVCs, ~1.4TB) remains on TrueNAS.

stacks/cloudflared/modules/cloudflared/cloudflare.tf

@@ -113,13 +113,41 @@ resource "cloudflare_record" "non_proxied_dns_record_ipv6" {
   zone_id  = var.cloudflare_zone_id
 }
 
-resource "cloudflare_record" "mail" {
-  content  = "mail.viktorbarzin.me"
+resource "cloudflare_record" "forwardemail_mx1" {
+  content  = "mx1.forwardemail.net"
   name     = "viktorbarzin.me"
   proxied  = false
   ttl      = 1
   type     = "MX"
-  priority = 1
+  priority = 10
+  zone_id  = var.cloudflare_zone_id
+}
+
+resource "cloudflare_record" "forwardemail_mx2" {
+  content  = "mx2.forwardemail.net"
+  name     = "viktorbarzin.me"
+  proxied  = false
+  ttl      = 1
+  type     = "MX"
+  priority = 10
+  zone_id  = var.cloudflare_zone_id
+}
+
+resource "cloudflare_record" "forwardemail_config" {
+  content  = "\"forward-email=mail.viktorbarzin.me\""
+  name     = "viktorbarzin.me"
+  proxied  = false
+  ttl      = 1
+  type     = "TXT"
+  zone_id  = var.cloudflare_zone_id
+}
+
+resource "cloudflare_record" "forwardemail_port" {
+  content  = "\"forward-email-port=266\""
+  name     = "viktorbarzin.me"
+  proxied  = false
+  ttl      = 1
+  type     = "TXT"
   zone_id  = var.cloudflare_zone_id
 }