feat: Insomnia Playwright Test Assignment – Submission

[yzx23]

Changes

• Added a new Playwright smoke test covering Insomnia’s core request workflow,
  including both happy-path and error-handling scenarios.
• Enabled Playwright HTML reporting for both local runs and CI.
• Updated the README to document test coverage, execution, and report usage.

Test Scenarios

• Successful request flow (create, send, validate 200 response)
• Error handling using a deterministic 404 response

Test Reporting

• Playwright HTML reporting is enabled
• Test reports are available as downloadable artifacts from CI runs

Notes

• Tests are written as user-focused end-to-end flows
• Public, deterministic endpoints are used to reduce test flakiness

[CLAassistant]

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[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}