Довёл fix20: firewall-mode, staged state, diagnostics, readiness и build-gate

orchestrator/src/lib/fs.ts

@@ -1,5 +1,28 @@
-export async function exists(path: string): Promise<boolean> {
-  return await Bun.file(path).exists();
+import { stat } from "node:fs/promises";
+
+async function statSafe(path: string): Promise<import("node:fs").Stats | null> {
+  try {
+    return await stat(path);
+  } catch (error) {
+    if (error && typeof error === "object" && "code" in error && (error as { code?: string }).code === "ENOENT") {
+      return null;
+    }
+    throw error;
+  }
+}
+
+export async function pathExists(path: string): Promise<boolean> {
+  return (await statSafe(path)) !== null;
+}
+
+export async function fileExists(path: string): Promise<boolean> {
+  const st = await statSafe(path);
+  return st?.isFile() ?? false;
+}
+
+export async function dirExists(path: string): Promise<boolean> {
+  const st = await statSafe(path);
+  return st?.isDirectory() ?? false;
 }
 
 export async function readText(path: string): Promise<string> {