chore: initialize Gitea v1.27.2 fork

Includes direct password setup links in registration emails.

Assisted-by: Codex:GPT-5

services/mailer/sender/dummy.go

@@ -0,0 +1,26 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package sender
+
+import (
+	"bytes"
+	"io"
+
+	"gitea.dev/modules/log"
+)
+
+// DummySender Sender sendmail mail sender
+type DummySender struct{}
+
+var _ Sender = &DummySender{}
+
+// Send send email
+func (s *DummySender) Send(from string, to []string, msg io.WriterTo) error {
+	buf := bytes.Buffer{}
+	if _, err := msg.WriteTo(&buf); err != nil {
+		return err
+	}
+	log.Debug("Mail From: %s To: %v Body: %s", from, to, buf.String())
+	return nil
+}