chore: initialize Gitea v1.27.2 fork

Includes direct password setup links in registration emails.

Assisted-by: Codex:GPT-5

models/renderhelper/main_test.go

@@ -0,0 +1,34 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package renderhelper
+
+import (
+	"context"
+	"strings"
+	"testing"
+
+	"gitea.dev/models/unittest"
+	"gitea.dev/modules/markup"
+)
+
+func testRenderString(ctx *markup.RenderContext, content string) (string, error) {
+	var buf strings.Builder
+	err := markup.Render(ctx, strings.NewReader(content), &buf)
+	return buf.String(), err
+}
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m, &unittest.TestOptions{
+		FixtureFiles: []string{"repository.yml", "user.yml"},
+		SetUp: func() error {
+			markup.RenderBehaviorForTesting.DisableAdditionalAttributes = true
+			markup.Init(&markup.RenderHelperFuncs{
+				IsUsernameMentionable: func(ctx context.Context, username string) bool {
+					return username == "user2"
+				},
+			})
+			return nil
+		},
+	})
+}