[feature] Fetch + create domain permissions from subscriptions nightly (#3635)

* peepeepoopoo

* test domain perm subs

* swagger

* envparsing

* dries your wets

* start on docs

* finish up docs

* copy paste errors

* rename actions package

* rename force -> skipCache

* move obfuscate parse nearer to where err is checked

* make higherPrios a simple slice

* don't use receiver for permsFrom funcs

* add more context to error logs

* defer finished log

* use switch for permType instead of if/else

* thanks linter, love you <3

* validate csv headers before full read

* use bufio scanner

internal/typeutils/internaltofrontend.go

@@ -2119,7 +2119,9 @@ func (c *Converter) DomainPermToAPIDomainPerm(
 	domainPerm.PrivateComment = d.GetPrivateComment()
 	domainPerm.SubscriptionID = d.GetSubscriptionID()
 	domainPerm.CreatedBy = d.GetCreatedByAccountID()
-	domainPerm.CreatedAt = util.FormatISO8601(d.GetCreatedAt())
+	if createdAt := d.GetCreatedAt(); !createdAt.IsZero() {
+		domainPerm.CreatedAt = util.FormatISO8601(createdAt)
+	}
 
 	// If this is a draft, also add the permission type.
 	if _, ok := d.(*gtsmodel.DomainPermissionDraft); ok {