app-server: preserve legacy cwd strings in exec events

codex-rs/core/tests/remote_env_windows/remote_env_windows_test.rs

@@ -194,7 +194,8 @@ async fn windows_exec_server_runs_with_native_shell_and_cwd() -> Result<()> {
             assert_eq!(&begin.command[1..], ["-NoProfile", "-Command", COMMAND]);
 
             let end = end.context("exec_command should emit an end event")?;
-            let expected_cwd = PathUri::parse("file:///C:/windows")?;
+            let expected_cwd: LegacyAppPathString =
+                PathUri::parse("file:///C:/windows")?.into();
             assert_eq!((&begin.cwd, &end.cwd), (&expected_cwd, &expected_cwd));
             assert_eq!((end.exit_code, end.status), (0, ExecCommandStatus::Completed));
 

codex-rs/core/tests/suite/unified_exec.rs

@@ -437,7 +437,10 @@ async fn unified_exec_emits_exec_command_begin_event() -> Result<()> {
 
     assert_command(&begin_event.command, "-lc", "/bin/echo hello unified exec");
 
-    assert_eq!(begin_event.cwd, PathUri::from_host_native_path(&cwd)?);
+    assert_eq!(
+        begin_event.cwd,
+        PathUri::from_host_native_path(&cwd)?.into()
+    );
 
     wait_for_event(&test.codex, |event| {
         matches!(event, EventMsg::TurnComplete(_))
@@ -508,7 +511,7 @@ async fn unified_exec_resolves_relative_workdir() -> Result<()> {
 
     assert_eq!(
         begin_event.cwd,
-        PathUri::from_host_native_path(&workdir)?,
+        PathUri::from_host_native_path(&workdir)?.into(),
         "exec_command cwd should resolve relative workdir against turn cwd",
     );
 
@@ -570,7 +573,7 @@ async fn unified_exec_respects_workdir_override() -> Result<()> {
 
     assert_eq!(
         begin_event.cwd,
-        PathUri::from_host_native_path(&workdir)?,
+        PathUri::from_host_native_path(&workdir)?.into(),
         "exec_command cwd should reflect the requested workdir override"
     );