Add playwright-spec-doc-reporter to Reporters section

[pnakhat]

Description

Adds playwright-spec-doc-reporter to the Reporters section.

What it does:

• Generates an HTML report with BDD/Gherkin-style annotations alongside standard Playwright test results
• AI-powered failure analysis with root cause suggestions
• Self-healing selector suggestions for broken locators
• Jira/Xray integration — push results directly to your test management tool
• Inline API request/response display for API tests
• Manual test support alongside automated test results
• Screenshot and video evidence embedded in test executions

It fills a gap in the reporter ecosystem for teams that need spec-level documentation output alongside standard test results, particularly useful in enterprise QA workflows with Jira/Xray.

Checklist

• Link is working and loads correctly
• Entry follows the existing alphabetical format in the Reporters section
• Package is published on npm and actively maintained