app-server: preserve legacy cwd strings in exec events

codex-rs/utils/path-uri/src/api_path_string.rs

@@ -81,9 +81,11 @@ impl LegacyAppPathString {
         })
     }
 
-    /// Parses this API string as an absolute path using the convention inferred from its spelling.
+    /// Parses this API string as a file URI or as an absolute path using its inferred convention.
     pub fn to_inferred_path_uri(&self) -> Option<PathUri> {
-        PathUri::try_from(self.clone()).ok()
+        PathUri::parse(&self.0)
+            .ok()
+            .or_else(|| PathUri::try_from(self.clone()).ok())
     }
 
     /// Parses this API string as a host-native absolute path.

codex-rs/utils/path-uri/src/api_path_string_tests.rs

@@ -465,6 +465,24 @@ fn converts_absolute_api_paths_using_the_inferred_convention() {
     }
 }
 
+#[test]
+fn converts_raw_file_uris_to_inferred_path_uris() {
+    for raw_uri in [
+        "file:///workspace/file.rs",
+        "file:///C:/workspace/file.rs",
+        "file://server/share/file.rs",
+    ] {
+        let path = serde_json::from_value::<LegacyAppPathString>(serde_json::json!(raw_uri))
+            .expect("raw file URI should deserialize as API text");
+
+        assert_eq!(
+            path.to_inferred_path_uri(),
+            Some(PathUri::parse(raw_uri).expect("raw file URI should parse")),
+            "round-tripping {raw_uri:?}",
+        );
+    }
+}
+
 #[test]
 fn converts_native_api_path_to_inferred_absolute_path() {
     #[cfg(windows)]