Add developer activity analysis across all repositories
- Collect developer activity data for past 12 months:
* Commits per developer across all repos
* Pull requests (created, merged, stats)
* Issues (created, closed)
* Lines of code (added, deleted, net)
* Repository and organization participation
- Generate comprehensive developer reports:
* Individual developer reports showing all activity
* Summary reports with rankings (most/least productive)
* Activity breakdown by repository
* Statistics and metrics
- Rankings by:
* Commits
* Pull requests
* Total contributions
* Lines of code
* Repository count
- Reports include:
* Per-developer detailed activity
* Top/bottom performers
* Activity statistics
* Repository participation