feat: [Booking Audit Stack - 6] Integration of Booking Audit System

[hariombalhara]

What does this PR do?

• Fixes #XXXX (GitHub issue number)
• Fixes CAL-XXXX (Linear issue number - should be visible at the bottom of the GitHub issue description)

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---

Summary by cubic

Integrates the booking audit system end-to-end and adds a dedicated viewer service. Handlers now emit audit logs across booking creation, confirmations, cancellations, reschedules, attendee/location changes, reassignments, and no‑shows; the API returns enriched logs with linked reschedule history.

• New Features
  • BookingAuditViewerService for permission-checked, enriched logs (actor display, displaySummary/details), with DI modules; viewer.bookings.getAuditLogs now uses it.
  • Replaced StatusChangeAuditActionService with AcceptedAuditActionService; BookingAuditService is write-only and ViewerService handles read/formatting.
  • Repository now exposes findAllForBooking returning logs for a booking and linked bookings, including actor info.
  • Actor tracking improved via user.uuid in session and repositories to attribute actions accurately.
  • Wired handlers to emit audit entries: confirmation, cancellation, request reschedule, add guests, edit location, round-robin reassignment, mark host/attendee no‑show.
  • Extended getBookingToDelete to include cancellationReason and cancelledBy to support cancellation audit data.

^{Written for commit 3618b5a. Summary will update automatically on new commits.}

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Project	Deployment	Preview	Comments	Updated (UTC)
cal-companion	Error			Nov 30, 2025 9:17am

2 Skipped Deployments

Project	Deployment	Preview	Comments	Updated (UTC)
cal	Ignored			Nov 30, 2025 9:17am
cal-eu	Ignored			Nov 30, 2025 9:17am

[hariombalhara]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• Add plan for more actions #25162
• feat: [Booking Audit Stack - 6] Integration of Booking Audit System #25120 👈 (View in Graphite)
• feat: add linkedBookingUid to booking audit for reschedule tracking #25202
• feat: Add booking audit log viewer with filtering and permissions #25152
• feat: Implement booking audit producer-consumer pattern with feature flag support #25470
• feat: [Booking Audit Stack - 3] Integrate Booking Audit Action services  #25125 : 1 other dependent PR (#24902 )
• feat: Add support to audit and view audit log with Booking CREATED action #25468
• main

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