questrade-api-wrapper

Merge pull request #1 from Luxcium/copilot/restructure-documentation-and-fix-code

Address review comments: NaN guard for RPS env vars, streaming URL fix, test cleanup, logger pending cap

Merge branch 'main' into copilot/restructure-documentation-and-fix-code

Add documentation, env.example, CONTRIBUTING, LICENSE; address review feedback

Fix critical code bugs: handleResponse body, fetch unification, QuestradeError class, timeout, memory leak, listeners, dead code