fix: correctly set parent call from for run

Signed-off-by: Donnie Adams <donnie@acorn.io>

Author: thedadams

src/gptscript.ts

@@ -569,7 +569,7 @@ export class Run {
 				}
 			} else if ((f.type as string).startsWith("call")) {
 				f = f as CallFrame
-				if (f.parentID === "" && this.parentCallId === "") {
+				if (!f.parentID && this.parentCallId === "") {
 					this.parentCallId = f.id
 				}
 				this.calls[f.id] = f

tests/gptscript.test.ts

@@ -79,6 +79,7 @@ describe("gptscript module", () => {
 
 		expect(out).toContain("Calvin Coolidge")
 		expect(err).toEqual("")
+		expect(run.parentCallFrame()).toBeTruthy()
 	})
 
 	test("evaluate executes a prompt correctly with context", async () => {