Introducing flinch for compile-time tests

[jeremyruppel]

Unsatisfied with other solutions out there, I worked with AI to come up with a super comprehensive testing library for typescript. Check the README for usage details.

This also introduces type tests for many of the interfaces exported from flickr-sdk.

This also also makes it so MockTransport can accept any type of thing to return, not just string.

[Copilot]

Pull Request Overview

This PR introduces flinch, a comprehensive TypeScript compile-time testing library, and integrates type testing throughout the flickr-sdk codebase. The PR also improves type safety by converting JSDoc comments to TypeScript types and making MockTransport more flexible.

• Introduces a new package @flickr/flinch for compile-time TypeScript type testing
• Adds comprehensive type tests for flickr-sdk interfaces and types using the new testing library
• Converts JSDoc type annotations to proper TypeScript types across test files

Reviewed Changes

Copilot reviewed 17 out of 18 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
packages/flinch/	Complete implementation of the flinch type testing library with utilities, tests, and documentation
test/types.ts	New comprehensive type tests for flickr-sdk interfaces using flinch
tsconfig.test.json	TypeScript configuration for running type tests
src/transport/mock.ts	Updates MockTransport to accept any type instead of just strings
src/index.ts	Exports additional types and configurations for better type testing
test/*.ts	Converts JSDoc type annotations to proper TypeScript types
package.json	Adds workspace configuration and updates test script

Comments suppressed due to low confidence (1)

test/transport.fetch.ts:114

• Using any type reduces type safety. Consider using a more specific type like Promise<[IncomingMessage, ServerResponse]> since once(server, 'request') returns a promise that resolves with request and response objects.

      const promise: Promise<any> = once(server, "request")