NestJS example build errors

[davidmytton]

When I try and start the NestJS example, it fails with various TypeScript errors:

Node: v20.17.0

10:50:36  ~/Code/arcjet-js/examples/nodejs-nestjs git:(main) npm run start

> [email protected] start
> nest start

../../protocol/convert.ts:12:8 - error TS2835: Relative import paths need explicit file extensions in ECMAScript imports when '--moduleResolution' is 'node16' or 'nodenext'. Did you mean './index.js'?

12 } from "./index";
          ~~~~~~~~~
../../protocol/convert.ts:34:8 - error TS2835: Relative import paths need explicit file extensions in ECMAScript imports when '--moduleResolution' is 'node16' or 'nodenext'. Did you mean './index.js'?

34 } from "./index";
          ~~~~~~~~~
../../protocol/convert.ts:63:13 - error TS2322: Type 'ArcjetMode' is not assignable to type 'never'.

63       const _exhaustive: never = mode;
               ~~~~~~~~~~~
../../protocol/convert.ts:84:13 - error TS2322: Type 'ArcjetEmailType' is not assignable to type 'never'.

84       const _exhaustive: never = emailType;
               ~~~~~~~~~~~
../../protocol/convert.ts:124:13 - error TS2322: Type 'ArcjetStack' is not assignable to type 'never'.

124       const _exhaustive: never = stack;
                ~~~~~~~~~~~
../../protocol/convert.ts:141:13 - error TS2322: Type 'ArcjetRuleState' is not assignable to type 'never'.

141       const _exhaustive: never = stack;
                ~~~~~~~~~~~
../../protocol/convert.ts:181:13 - error TS2322: Type 'ArcjetConclusion' is not assignable to type 'never'.

181       const _exhaustive: never = conclusion;
                ~~~~~~~~~~~

Found 7 error(s).