chore: initialize Gitea v1.27.2 fork

Includes direct password setup links in registration emails.

Assisted-by: Codex:GPT-5

modules/migration/reaction.go

@@ -0,0 +1,17 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package migration
+
+// Reaction represents a reaction to an issue/pr/comment.
+type Reaction struct {
+	UserID   int64  `yaml:"user_id" json:"user_id"`
+	UserName string `yaml:"user_name" json:"user_name"`
+	Content  string `json:"content"`
+}
+
+// GetExternalName ExternalUserMigrated interface
+func (r *Reaction) GetExternalName() string { return r.UserName }
+
+// GetExternalID ExternalUserMigrated interface
+func (r *Reaction) GetExternalID() int64 { return r.UserID }