Fix cwd

run/entry

@@ -138416,7 +138416,7 @@ var Inputs = type({
   "comment_id?": "number|null",
   "issue_id?": "number|null",
   "pr_id?": "number|null",
-  "cwd?": "string"
+  "cwd?": "string|null"
 });
 async function main(inputs) {
   var _stack2 = [];
@@ -138798,7 +138798,7 @@ async function run() {
       effort: core4.getInput("effort") || "think",
       agent: core4.getInput("agent") || null,
       sandbox: core4.getInput("sandbox") === "true" ? true : void 0,
-      cwd: core4.getInput("cwd") || void 0
+      cwd: core4.getInput("cwd") || null
     });
     const result = await main(inputs);
     if (!result.success) {

run/entry.ts

@@ -14,7 +14,7 @@ async function run(): Promise<void> {
       effort: core.getInput("effort") || "think",
       agent: core.getInput("agent") || null,
       sandbox: core.getInput("sandbox") === "true" ? true : undefined,
-      cwd: core.getInput("cwd") || undefined,
+      cwd: core.getInput("cwd") || null,
     });
 
     const result = await main(inputs);