[SKR Watch] Remove deprecated parts

[lindnerby]

Description

Clean up the Runtime Watcher by removing now-deprecated parts related to ownership resolution and verification functionality.

Reasons

With the new event structure and SKR meta parsing completed, the previous owner field and verification via VerifyFunc are no longer needed. Cleaning up reduces maintenance burden and avoids confusion.

Acceptance Criteria

• Remove owner field from WatchEvent
• Remove extractOwner method from the event handler
• Remove VerifyFunc from listener
• Release a new version of RW

Testing Approach

• Unit Testing

Current status

#549 (comment)

[lindnerby]

Blocked by: kyma-project/lifecycle-manager#2440

[c-pius]

This ticket is actually stopping our use of the owned-by annotation. The fact that we are not using it anymore unblocks our two other tickets related to the owned by annotation.

[medmes]

Progress & Release Plan

I propose that the issue will be addressed through a coordinated PRs & release sequence to avoid breaking changes:

• listener PR (feat: Removes owner field from event flow, verifyFunc and all related logic #677) - Merge to main, then release as v1.4.0
• lifecycle-manager PR(chore: Update to listener v1.4.0 and remove domain verification lifecycle-manager#2961) - Update to use listener v1.4.0 with new 2-parameter signature:
  • - Removes Owner.
  • - Remove VerifyFunc.
  • - Updates to listener v1.4.0
• runtime-watcher PR (feat: Update to listener v1.4.0 and remove Owner field usage #678) - Once KLM is merged, remove owner extraction logic, then release as v2.1.0.

This sequence ensures that lifecycle-manager is compatible with the new listener version before runtime-watcher adopts it.