Converts SentryWatchdogTerminationLogic and SentryWatchdogTerminationTracker to Swift

[itaybre]

📜 Description

Changes:

• Added SentryWatchdogTerminationLogic.swift with @objc support
• Added SentryWatchdogTerminationTracker.swift with @objc support
• Deleted old Objective-C implementations (.m and .h files)
• Updated imports in Integration and other files to use Swift versions via
  SentrySwift.h
• Updated test data to reference Swift class properties

💡 Motivation and Context

These changes are needed to convert SentryWatchdogTerminationIntegration to Swift

💚 How did you test it?

📝 Checklist

You have to check all boxes before merging:

• I added tests to verify the changes.
• No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled.
• I updated the docs if needed.
• I updated the wizard if needed.
• Review from the native team if needed.
• No breaking change or entry added to the changelog.
• No breaking change for hybrid SDKs or communicated to hybrid SDKs.

No public changes, #skip-changelog

Closes #7127

[codecov]

Codecov Report

❌ Patch coverage is 91.48936% with 12 lines in your changes missing coverage. Please review.
✅ Project coverage is 84.802%. Comparing base (8440c54) to head (f662616).
⚠️ Report is 21 commits behind head on main.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
Sources/Swift/AppState/SentryAppStateManager.swift	45.454%	11 Missing and 1 partial ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##              main     #7118       +/-   ##
=============================================
+ Coverage   84.710%   84.802%   +0.091%     
=============================================
  Files          459       461        +2     
  Lines        27490     27859      +369     
  Branches     12117     12321      +204     
=============================================
+ Hits         23287     23625      +338     
- Misses        4162      4193       +31     
  Partials        41        41               

Files with missing lines	Coverage Δ
Sources/Sentry/SentryClient.m	97.426% <100.000%> (ø)
Sources/Sentry/SentryCrashIntegration.m	100.000% <ø> (ø)
...rces/Sentry/SentryCrashIntegrationSessionHandler.m	100.000% <ø> (ø)
...try/SentryWatchdogTerminationTrackingIntegration.m	89.655% <ø> (ø)
...gTerminations/SentryWatchdogTerminationLogic.swift	100.000% <100.000%> (ø)
...erminations/SentryWatchdogTerminationTracker.swift	100.000% <100.000%> (ø)
Sources/Swift/AppState/SentryAppStateManager.swift	81.818% <45.454%> (-18.182%)	⬇️

... and 13 files with indirect coverage changes

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[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1210.94 ms	1238.52 ms	27.58 ms
Size	24.14 KiB	1.04 MiB	1.02 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
013fd4d	1216.02 ms	1242.16 ms	26.14 ms
d29a425	1209.96 ms	1239.00 ms	29.04 ms
9f7ef2b	1213.53 ms	1250.23 ms	36.70 ms

App size

Revision	Plain	With Sentry	Diff
013fd4d	24.14 KiB	1.04 MiB	1.02 MiB
d29a425	24.14 KiB	1.04 MiB	1.02 MiB
9f7ef2b	24.14 KiB	1.04 MiB	1.02 MiB

Previous results on branch: ref/watchdog-logic-tracker-to-swift

Startup times

Revision	Plain	With Sentry	Diff
3027f40	1220.11 ms	1265.87 ms	45.76 ms

App size

Revision	Plain	With Sentry	Diff
3027f40	24.14 KiB	1.03 MiB	1.01 MiB

[philprime]

Good progress, left some comments to discuss

[philprime]

LGTM