fix: improve docs and warnings

Author: jooola

docs/reference/manual/hcloud_primary-ip_create.md

@@ -22,7 +22,15 @@ var CreateCmd = base.CreateCmd[*hcloud.PrimaryIP]{
 			Long: `Create a Primary IP.
 
 The --datacenter flag is deprecated. Use --location or --assignee-id instead.
-See https://docs.hetzner.cloud/changelog#2025-12-16-phasing-out-datacenters.`,
+See https://docs.hetzner.cloud/changelog#2025-12-16-phasing-out-datacenters.
+
+The --assignee-type flag will be required together with the --assignee-id flag. Using 
+the default value (server) for the --assignee-type flag is deprecated. Consider 
+explicitly setting the --assignee-type flag.
+
+See https://docs.hetzner.cloud/changelog#2026-04-27-primary-ips-will-return-unassigned
+and https://docs.hetzner.cloud/changelog#2026-04-27-primary-ips-make-assignee_type-optional.
+`,
 			TraverseChildren:      true,
 			DisableFlagsInUseLine: true,
 		}
@@ -80,9 +88,10 @@ See https://docs.hetzner.cloud/changelog#2025-12-16-phasing-out-datacenters.`,
 			if !cmd.Flags().Changed("assignee-type") {
 				cmd.PrintErrln(
 					"Warning: " +
-						"The --assignee-type flag will soon be required together" +
-						"with the --assignee-id flag. Consider explicitly setting " +
-						"the --assignee-type flag.",
+						"The --assignee-type flag will be required together " +
+						"with the --assignee-id flag and will no longer default " +
+						"to 'server'. Consider explicitly setting the " +
+						"--assignee-type flag.",
 				)
 			}
 			createOpts.AssigneeType = assigneeType