feat: Add image pull statistics API endpoints and UI integration
- Add new API endpoints for tag and manifest pull statistics
- Integrate pull metrics into web UI with new table columns
- Add FEATURE_IMAGE_PULL_STATS feature flag and PULL_METRICS_REDIS config
- Add pullstatsredisflushworker to supervisord configuration
- Add comprehensive test coverage for pull statistics functionality
Co-authored-by: shudeshp <shudeshp@redhat.com>
* Added redis database and redis flush worker
* updated digest validation
* adding test coverage for scan_keys function
* adding test coverage
* added tests for scan function
* added coverage for flush to database function
* added coverage for gnuicorn worker initialization
* Replaced mock methods in the test with actual function calls
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Co-authored-by: shudeshp <shudeshp@redhat.com>