chore: initialize Gitea v1.27.2 fork

Includes direct password setup links in registration emails.

Assisted-by: Codex:GPT-5

modules/indexer/internal/db/indexer.go

@@ -0,0 +1,34 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db
+
+import (
+	"context"
+
+	"gitea.dev/modules/indexer/internal"
+)
+
+var _ internal.Indexer = &Indexer{}
+
+// Indexer represents a basic db indexer implementation
+type Indexer struct{}
+
+// Init initializes the indexer
+func (i *Indexer) Init(_ context.Context) (bool, error) {
+	// Return true to indicate that the index was opened/existed.
+	// So that the indexer will not try to populate the index, the data is already there.
+	return true, nil
+}
+
+// Ping checks if the indexer is available
+func (i *Indexer) Ping(_ context.Context) error {
+	// No need to ping database to check if it is available.
+	// If the database goes down, Gitea will go down, so nobody will care if the indexer is available.
+	return nil
+}
+
+// Close closes the indexer
+func (i *Indexer) Close() {
+	// nothing to do
+}