schema migration and account fixes

very close to rolling this out! just need to address some security concerns first

model/account.go

@@ -1,27 +1,16 @@
 package model
 
-import (
-	"time"
-)
-
 type (
     Account struct {
         ID          string  `json:"id" db:"id"`
         Username    string  `json:"username" db:"username"`
-        Password    []byte  `json:"password" db:"password"`
+        Password    string  `json:"password" db:"password"`
         Email       string  `json:"email" db:"email"`
         AvatarURL   string  `json:"avatar_url" db:"avatar_url"`
         Privileges  []AccountPrivilege  `json:"privileges"`
     }
 
     AccountPrivilege string
-
-    Invite struct {
-        Code        string      `db:"code"`
-        CreatedByID string      `db:"created_by"`
-        CreatedAt   time.Time   `db:"created_at"`
-        ExpiresAt   time.Time   `db:"expires_at"`
-    }
 )
 
 const (