refactor: Convert SentryCoreDataTrackingIntegration to Swift

[itaybre]

📜 Description

Not ready for review yet

💡 Motivation and Context

Swift conversion

💚 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.

#skip-changelog

Closes #7275

[linear]

COCOA-988 Refactor `SentryCoreDataTrackingIntegration.m` in Swift

[github-actions]

Semver Impact of This PR

🟢 Patch (bug fixes)

📋 Changelog Preview

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.032%. Comparing base (7c58690) to head (918e252).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@              Coverage Diff              @@
##              main     #7255       +/-   ##
=============================================
+ Coverage   85.025%   85.032%   +0.006%     
=============================================
  Files          471       472        +1     
  Lines        28388     28401       +13     
  Branches     12463     12470        +7     
=============================================
+ Hits         24137     24150       +13     
+ Misses        4204      4202        -2     
- Partials        47        49        +2     

Files with missing lines	Coverage Δ
Sources/Sentry/SentryBaseIntegration.m	70.666% <ø> (-1.486%)	⬇️
Sources/Sentry/SentryCoreDataSwizzlingHelper.m	100.000% <100.000%> (ø)
Sources/Sentry/SentrySDKInternal.m	84.120% <100.000%> (-0.068%)	⬇️
Sources/Swift/Core/Integrations/Integrations.swift	100.000% <100.000%> (ø)
...Performance/CoreData/SentryCoreDataSwizzling.swift	100.000% <100.000%> (ø)
...e/CoreData/SentryCoreDataTrackingIntegration.swift	100.000% <100.000%> (ø)
Sources/Swift/SentryDependencyContainer.swift	96.385% <100.000%> (+0.021%)	⬆️

... and 5 files with indirect coverage changes

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[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1215.19 ms	1248.59 ms	33.40 ms
Size	24.14 KiB	1.08 MiB	1.06 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
83bf9af	1213.30 ms	1234.18 ms	20.89 ms
5d67f5d	1225.33 ms	1262.76 ms	37.43 ms
e01eafa	1223.36 ms	1252.43 ms	29.07 ms
86b8951	1211.20 ms	1247.92 ms	36.72 ms
9a0a3cd	1220.85 ms	1243.69 ms	22.83 ms
e701dc8	1215.89 ms	1254.06 ms	38.17 ms
fd24b7c	1222.39 ms	1259.67 ms	37.28 ms
013fd4d	1216.02 ms	1242.16 ms	26.14 ms
0d145c3	1224.04 ms	1255.34 ms	31.30 ms
37bc095	1210.00 ms	1242.69 ms	32.69 ms

App size

Revision	Plain	With Sentry	Diff
83bf9af	24.14 KiB	1.04 MiB	1.02 MiB
5d67f5d	24.14 KiB	1.06 MiB	1.04 MiB
e01eafa	24.14 KiB	1.07 MiB	1.04 MiB
86b8951	24.14 KiB	1.08 MiB	1.06 MiB
9a0a3cd	24.14 KiB	1.08 MiB	1.06 MiB
e701dc8	24.14 KiB	1.06 MiB	1.04 MiB
fd24b7c	24.14 KiB	1.07 MiB	1.04 MiB
013fd4d	24.14 KiB	1.04 MiB	1.02 MiB
0d145c3	24.14 KiB	1.07 MiB	1.05 MiB
37bc095	24.14 KiB	1.06 MiB	1.04 MiB

Previous results on branch: itaybrenner/cocoa-988-refactor-sentrycoredatatrackingintegrationm-in-swift

Startup times

Revision	Plain	With Sentry	Diff
7c41873	1212.56 ms	1239.45 ms	26.88 ms
6736902	1223.02 ms	1250.51 ms	27.49 ms

App size

Revision	Plain	With Sentry	Diff
7c41873	24.14 KiB	1.08 MiB	1.06 MiB
6736902	24.14 KiB	1.08 MiB	1.06 MiB

[github-actions]

🚨 Detected changes in high risk code 🚨

High-risk code can easily blow up and is hard to test. We had severe bugs in the past. Be extra careful when changing these files, and have an extra careful look at these:

• Sources/Sentry/SentryCoreDataSwizzling.m

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

^{Bugbot Autofix is OFF. To automatically fix reported issues with Cloud Agents, enable Autofix in the Cursor dashboard.}

[cursor]

Race condition when accessing weak tracker reference twice

Medium Severity

The __weak static _tracker variable is accessed twice in the ternary expression: once for the nil check and once for the method call. Between these accesses, the tracker could be deallocated on another thread, causing the second access to return nil. This would result in the message being sent to nil, returning nil/NO instead of calling the original Core Data implementation. The old code avoided this by capturing the weak reference into a local strong variable first. This could cause fetch operations to silently return empty results or save operations to report false failures.

Additional Locations (1)

• Sources/Sentry/SentryCoreDataSwizzlingHelper.m#L44-L50