Collect audit-logs for edge-native clusters

[ChellaVigneshKP]

Adds support for collecting Kubernetes audit logs in edge-native support bundles.

Changes

• Introduces audit log collection with new flags:

  • -u enable audit logs
  • -f start time, -t end time, -w lookback days (default: 3)

• Supports flexible time formats (YYYY-MM-DD, datetime, ISO) and normalizes to UTC

• Selects relevant audit log files and generates:

  • raw logs (compressed)
  • audit-filtered.jsonl (time-filtered via jq)
  • audit-range.txt (resolved time window)
  • audit-coverage-report.txt (coverage summary)

• Collects audit-related diagnostics (apiserver config, journal logs, policies)

Notes

• -f/-t override -w
• Falls back gracefully if jq or audit logs are unavailable