♻️ refactor: rewrite OAuth provision business logic for new user schema

prisma/schema.prisma

@@ -175,8 +175,8 @@ model UserOauthAccounts {
   provider_name   auth_provider
   provider_sub    String? @db.VarChar(255)
   provider_email  String? @db.VarChar(255)
-  provider_token  String? @db.VarChar(255)
-  refresh_token   String? @db.VarChar(255)
+  provider_token  String? @db.Text
+  refresh_token   String? @db.Text
   expires_at      DateTime? @db.Timestamptz()
   created_at      DateTime @default(now()) @db.Timestamptz()
   updated_at      DateTime @updatedAt @db.Timestamptz()
@@ -194,7 +194,8 @@ model UserSession {
   browser_name    String?  @db.VarChar(50)
   browser_version String?  @db.VarChar(50)
   ip_login        String?  @db.Inet()
-  login_at        DateTime  @default(now()) @db.Timestamptz()
+  valid_until     DateTime @db.Timestamptz()
+  login_at        DateTime @default(now()) @db.Timestamptz()
   logout_at       DateTime? @db.Timestamptz()
 
   user_id     String   @db.Uuid