fix(error-codes): enable modern TypeScript plugin

Add useLegacyTypescriptPlugin: false to use @rollup/plugin-typescript
instead of deprecated rollup-plugin-typescript2. This resolves TypeScript
compilation errors during build.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: ScriptedAlchemy

packages/error-codes/project.json

@@ -18,7 +18,8 @@
         "project": "packages/error-codes/package.json",
         "compiler": "swc",
         "format": ["cjs", "esm"],
-        "generatePackageJson": false
+        "generatePackageJson": false,
+        "useLegacyTypescriptPlugin": false
       },
       "dependsOn": [
         {