tests and better diffs (#163)

* refactor get_review_comments to use reviewThreads graphql api with full thread context and proper diff extraction

* Improve get_review_comments output

* Improve tests and diffs

* GH_TOKEN

* Added back approved_by

* Fix CI

vitest.config.ts

@@ -1,9 +1,10 @@
-import { defineConfig } from 'vitest/config';
+import { defineConfig } from "vitest/config";
 
 export default defineConfig({
   test: {
     globals: true,
-    environment: 'node',
-    exclude: ['node_modules', '.temp'],
+    environment: "node",
+    exclude: ["**/node_modules/**", "**/.temp/**", "**/.pnpm-store/**"],
+    setupFiles: ["./vitest.setup.ts"],
   },
 });