chore: initialize Gitea v1.27.2 fork

Includes direct password setup links in registration emails.

Assisted-by: Codex:GPT-5

routers/web/repo/helper.go

@@ -0,0 +1,19 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"gitea.dev/modules/git"
+	"gitea.dev/services/context"
+)
+
+func HandleGitError(ctx *context.Context, msg string, err error) {
+	if git.IsErrNotExist(err) {
+		ctx.Data["NotFoundPrompt"] = ctx.Locale.Tr("repo.tree_path_not_found", ctx.Repo.TreePath, ctx.Repo.RefTypeNameSubURL())
+		ctx.Data["NotFoundGoBackURL"] = ctx.Repo.RepoLink + "/src/" + ctx.Repo.RefTypeNameSubURL()
+		ctx.NotFound(err)
+	} else {
+		ctx.ServerError(msg, err)
+	}
+}