chore: initialize Gitea v1.27.2 fork

Includes direct password setup links in registration emails.

Assisted-by: Codex:GPT-5

modules/git/repo_commitgraph.go

@@ -0,0 +1,22 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git
+
+import (
+	"context"
+	"fmt"
+
+	"gitea.dev/modules/git/gitcmd"
+)
+
+// WriteCommitGraph write commit graph to speed up repo access
+// this requires git v2.18 to be installed
+func WriteCommitGraph(ctx context.Context, repoPath string) error {
+	if DefaultFeatures().CheckVersionAtLeast("2.18") {
+		if _, _, err := gitcmd.NewCommand("commit-graph", "write").WithDir(repoPath).RunStdString(ctx); err != nil {
+			return fmt.Errorf("unable to write commit-graph for '%s' : %w", repoPath, err)
+		}
+	}
+	return nil
+}