refactor(events): use typed queue and simplify controller

[ivankatliarchuk]

What does it do ?

• Queue type changed from [any] → [*eventsv1.Event], eliminating the runtime type assertion in processNextWorkItem
• dryRun bool + hostname string fields replaced by pre-computed createOpts metav1.CreateOptions
• maxTriesPerEvent renamed to maxRetriesPerEvent
• event.ReportingController assignment removed from emit as it already set here

  external-dns/pkg/events/types.go

  Line 196 in 3a30b7e

  ReportingController: controllerName,

• Tests migrated from hand-built Controller structs to NewEventController(...) - less internal coupling
• fake.EventEmitter.Add fixed to iterate all events instead of only events[0] (was a panic on empty input); test updated accordingly

follow-up

• encapsulate ObjectReference
• 95%+ code coverage for controller
• on endpoint merge, send events to multiple objects
• fix race conditions in event controller fix(events): guard Add against TOCTOU and post-shutdown calls gofogo/k8s-sigs-external-dns-fork#77

Motivation

The any-typed queue required an unsafe cast on every dequeue, and dryRun was being read on every processNextWorkItem call to reconstruct CreateOptions. Switching to a concrete type and pre-building createOpts removes both the runtime risk and the per-call allocation.

More

• Yes, this PR title follows Conventional Commits
• Yes, I added unit tests
• Yes, I updated end user documentation accordingly

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[coveralls]

Pull Request Test Coverage Report for Build 23981619245

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage decreased (-0.02%) to 80.513%

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Files with Coverage Reduction	New Missed Lines	%
openshift_route.go	1	82.93%

Totals
Change from base Build 23940145743:	-0.02%
Covered Lines:	17146
Relevant Lines:	21296

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💛 - Coveralls

[ivankatliarchuk]

/test pull-external-dns-unit-test