Refactor browser service for parallel worker pool and deep research capabilities. Clean up redundant directories and fix potential path issues for .browser_data.

docs: finalize Phase 4 & 5 implementation updates and project TODO list status

feat(browser-skill): Implement Phase 4 Browser Automation foundations & fix GitBucket utility formatting

feat: auto-retrieve GITBUCKET_TOKEN from .env.gitbucket in utilities #6

feat: standardize GitBucket issue management with parameterized Python scripts #6