chore: initialize Gitea v1.27.2 fork

Includes direct password setup links in registration emails.

Assisted-by: Codex:GPT-5

tests/fuzz/fuzz_test.go

@@ -0,0 +1,34 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package fuzz
+
+import (
+	"bytes"
+	"io"
+	"testing"
+
+	"gitea.dev/modules/markup"
+	"gitea.dev/modules/markup/markdown"
+	"gitea.dev/modules/setting"
+)
+
+func newFuzzRenderContext() *markup.RenderContext {
+	return markup.NewTestRenderContext("https://example.com/go-gitea/gitea", map[string]string{"user": "go-gitea", "repo": "gitea"})
+}
+
+func FuzzMarkdownRenderRaw(f *testing.F) {
+	f.Fuzz(func(t *testing.T, data []byte) {
+		setting.IsInTesting = true
+		setting.AppURL = "http://localhost:3000/"
+		markdown.RenderRaw(newFuzzRenderContext(), bytes.NewReader(data), io.Discard)
+	})
+}
+
+func FuzzMarkupPostProcess(f *testing.F) {
+	f.Fuzz(func(t *testing.T, data []byte) {
+		setting.IsInTesting = true
+		setting.AppURL = "http://localhost:3000/"
+		markup.PostProcessDefault(newFuzzRenderContext(), bytes.NewReader(data), io.Discard)
+	})
+}