feat(postgres): added copyright as enum

Signed-off-by: soxx <soxx@fenpa.ws>

pkg/database/migrations/001_inital_database.sql

@@ -12,7 +12,8 @@ CREATE TYPE TagType AS ENUM (
     'artist',
     'lore',
     'meta',
-    'invalid'
+    'invalid',
+    'copyright'
     );
 
 CREATE TABLE "Post"

pkg/models/const.go

@@ -20,6 +20,7 @@ const (
 	Lore      TagType = "lore"
 	Meta      TagType = "meta"
 	Invalid   TagType = "invalid"
+	Copyright TagType = "copyright"
 )
 
 func (r *Rating) Convert(e621Rating string) {