chore: initialize Gitea v1.27.2 fork

Includes direct password setup links in registration emails.

Assisted-by: Codex:GPT-5

services/auth/source/db/assert_interface_test.go

@@ -0,0 +1,20 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db_test
+
+import (
+	auth_model "gitea.dev/models/auth"
+	"gitea.dev/services/auth"
+	"gitea.dev/services/auth/source/db"
+)
+
+// This test file exists to assert that our Source exposes the interfaces that we expect
+// It tightly binds the interfaces and implementation without breaking go import cycles
+
+type sourceInterface interface {
+	auth.PasswordAuthenticator
+	auth_model.Config
+}
+
+var _ (sourceInterface) = &db.Source{}