refactor: dedupe core helper error formatting

src/hooks/bundled/command-logger/handler.ts

@@ -27,6 +27,7 @@ import fs from "node:fs/promises";
 import os from "node:os";
 import path from "node:path";
 import { resolveStateDir } from "../../../config/paths.js";
+import { formatErrorMessage } from "../../../infra/errors.js";
 import { createSubsystemLogger } from "../../../logging/subsystem.js";
 import type { HookHandler } from "../../hooks.js";
 
@@ -60,7 +61,7 @@ const logCommand: HookHandler = async (event) => {
 
     await fs.appendFile(logFile, logLine, "utf-8");
   } catch (err) {
-    const message = err instanceof Error ? err.message : String(err);
+    const message = formatErrorMessage(err);
     log.error(`Failed to log command: ${message}`);
   }
 };