coding-agent: fix macOS screenshot filenames with unicode spaces (#181)

packages/coding-agent/src/core/tools/write.ts

@@ -1,21 +1,8 @@
-import * as os from "node:os";
 import type { AgentTool } from "@mariozechner/pi-ai";
 import { Type } from "@sinclair/typebox";
 import { mkdir, writeFile } from "fs/promises";
 import { dirname, resolve as resolvePath } from "path";
-
-/**
- * Expand ~ to home directory
- */
-function expandPath(filePath: string): string {
-	if (filePath === "~") {
-		return os.homedir();
-	}
-	if (filePath.startsWith("~/")) {
-		return os.homedir() + filePath.slice(1);
-	}
-	return filePath;
-}
+import { expandPath } from "./path-utils.js";
 
 const writeSchema = Type.Object({
 	path: Type.String({ description: "Path to the file to write (relative or absolute)" }),