feat: M3 import & indexing engine delivery layer with durable collision handling, space checking and console

src/Console/ImportWorkerFactory.php

@@ -0,0 +1,14 @@
+<?php
+
+declare(strict_types=1);
+
+namespace MeshVault\Console;
+
+use MeshVault\Indexer\ImportWorker;
+
+/** Builds an ImportWorker bound to a specific graceful-stop callback. */
+interface ImportWorkerFactory
+{
+    /** @param callable(): bool $shouldStop */
+    public function __invoke(callable $shouldStop): ImportWorker;
+}