chore(vendor): import pi 1.3.0

Imported as a linear vendor commit so forge rebases do not replay the upstream root tree.

git-subtree-dir: third_party/pi

git-subtree-split: 71023aec1546d6d677a65669c5665c0927ce0dd0

third_party/pi/packages/env/src/errors.ts

@@ -0,0 +1,34 @@
+import { err, FileError, type Result } from "@earendil-works/pi-durable/env";
+import { RemoteError } from "./connection.ts";
+
+export function abortResult<T>(signal: AbortSignal | undefined, path?: string): Result<T, FileError> | undefined {
+	return signal?.aborted ? err(new FileError("aborted", "aborted", path)) : undefined;
+}
+
+/** `NodeExecutionEnv`'s mapping of Node error codes to `FileError` codes. */
+export function toFileError(error: unknown, fallbackPath?: string): FileError {
+	if (error instanceof FileError) return error;
+	if (!(error instanceof RemoteError)) {
+		const cause = error instanceof Error ? error : new Error(String(error));
+		return new FileError("unknown", cause.message, fallbackPath, cause);
+	}
+	const path = error.path ?? fallbackPath;
+	switch (error.code) {
+		case "aborted":
+			return new FileError("aborted", error.message, path, error);
+		case "ENOENT":
+			return new FileError("not_found", error.message, path, error);
+		case "EACCES":
+		case "EPERM":
+			return new FileError("permission_denied", error.message, path, error);
+		case "ENOTDIR":
+			return new FileError("not_directory", error.message, path, error);
+		case "EISDIR":
+			return new FileError("is_directory", error.message, path, error);
+		case "EINVAL":
+		case "SYMLINK":
+		case "NOT_REGULAR":
+			return new FileError("invalid", error.message, path, error);
+	}
+	return new FileError("unknown", error.message, path, error);
+}