chore: initialize Gitea v1.27.2 fork

Includes direct password setup links in registration emails.

Assisted-by: Codex:GPT-5

modules/gitrepo/walk_gogit.go

@@ -0,0 +1,36 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+//go:build gogit
+
+package gitrepo
+
+import (
+	"context"
+
+	"github.com/go-git/go-git/v5/plumbing"
+)
+
+// WalkReferences walks all the references from the repository
+// refname is empty, ObjectTag or ObjectBranch. All other values should be treated as equivalent to empty.
+func WalkReferences(ctx context.Context, repo Repository, walkfn func(sha1, refname string) error) (int, error) {
+	gitRepo, closer, err := RepositoryFromContextOrOpen(ctx, repo)
+	if err != nil {
+		return 0, err
+	}
+	defer closer.Close()
+
+	i := 0
+	iter, err := gitRepo.GoGitRepo().References()
+	if err != nil {
+		return i, err
+	}
+	defer iter.Close()
+
+	err = iter.ForEach(func(ref *plumbing.Reference) error {
+		err := walkfn(ref.Hash().String(), string(ref.Name()))
+		i++
+		return err
+	})
+	return i, err
+}