fix(mcp): return correct lines on typescript errors

Author: stainless-app[bot]

.devcontainer/Dockerfile

@@ -0,0 +1,23 @@
+# syntax=docker/dockerfile:1
+FROM debian:bookworm-slim AS stainless
+
+RUN apt-get update && apt-get install -y \
+  nodejs \
+  npm \
+  yarnpkg \
+  && apt-get clean autoclean
+
+# Ensure UTF-8 encoding
+ENV LANG=C.UTF-8
+ENV LC_ALL=C.UTF-8
+
+# Yarn
+RUN ln -sf /usr/bin/yarnpkg /usr/bin/yarn
+
+WORKDIR /workspace
+
+COPY package.json yarn.lock /workspace/
+
+RUN yarn install
+
+COPY . /workspace

.eslintrc.js

@@ -0,0 +1,10 @@
+module.exports = {
+  parser: '@typescript-eslint/parser',
+  plugins: ['@typescript-eslint', 'unused-imports', 'prettier'],
+  rules: {
+    'no-unused-vars': 'off',
+    'prettier/prettier': 'error',
+    'unused-imports/no-unused-imports': 'error',
+  },
+  root: true,
+};

jest.setup.ts

@@ -0,0 +1,14 @@
+/**
+ * This file polyfills the global `File` object for you if it's not already defined
+ * when running on Node.js
+ *
+ * This is only needed on Node.js v18 & v19. Newer versions already define `File`
+ * as a global.
+ */
+
+// @ts-ignore
+type nodeBuffer = typeof import('node:buffer');
+declare const File: typeof globalThis extends { File: unknown } ? (typeof globalThis)['File']
+: nodeBuffer extends { File: unknown } ? nodeBuffer['File']
+: any;
+export {};

src/internal/polyfill/file.node.d.ts

@@ -0,0 +1,9 @@
+/**
+ * This file polyfills the global `File` object for you if it's not already defined
+ * when running on Node.js
+ *
+ * This is only needed on Node.js v18 & v19. Newer versions already define `File`
+ * as a global.
+ */
+
+import './file.node.js';