Add self-hosted-livesync-cli to src/apps/cli as a headless, and a dedicated version.

src/apps/cli/serviceModules/FileAccessCLI.ts

@@ -0,0 +1,20 @@
+import { FileAccessBase, type FileAccessBaseDependencies } from "@lib/serviceModules/FileAccessBase";
+import { NodeFileSystemAdapter } from "../adapters/NodeFileSystemAdapter";
+
+/**
+ * CLI-specific implementation of FileAccessBase
+ * Uses NodeFileSystemAdapter for Node.js file operations
+ */
+export class FileAccessCLI extends FileAccessBase<NodeFileSystemAdapter> {
+    constructor(basePath: string, dependencies: FileAccessBaseDependencies) {
+        const adapter = new NodeFileSystemAdapter(basePath);
+        super(adapter, dependencies);
+    }
+
+    /**
+     * Expose the adapter for accessing scanDirectory
+     */
+    get nodeAdapter(): NodeFileSystemAdapter {
+        return this.adapter;
+    }
+}