feat: Track low power mode in device context

[itaybre]

Summary

• Adds low_power_mode boolean to the device context, available on all event types
• Observes NSProcessInfoPowerStateDidChangeNotification in SentryCrashIntegration to keep the scope's device context in sync, ensuring the value is persisted for crashes and watchdog terminations
• Also reads the value at capture time in SentryExtraContextProvider for non-crash events
• Gated with @available(macOS 12.0, *) since the macOS deployment target is 10.14; available unconditionally on iOS, tvOS, watchOS, and visionOS

Test plan

• Added testLowPowerMode and testLowPowerModeDisabled tests for SentryExtraContextProvider
• All existing SentryExtraContextProviderTests pass
• All existing SentryCrashIntegrationTests pass (31 tests)
• Builds successfully on iOS and macOS

Fixes: #5322

[github-actions]

Semver Impact of This PR

🟡 Minor (new features)

📋 Changelog Preview

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New Features ✨

• Track low power mode in device context by itaybre in #7777

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_{🤖 This preview updates automatically when you update the PR.}

[github-actions]

	Messages
📖	Do not forget to update Sentry-docs with your feature once the pull request gets approved.

Generated by 🚫 dangerJS against 977efdf

[sentry]

Sentry Build Distribution

App Name	App ID	Version	Configuration	Install Page
SDK-Size	io.sentry.sample.SDK-Size	9.10.0 (1)	Release	Install Build

Configure sentry-cocoa build distribution settings

[codecov]

Codecov Report

❌ Patch coverage is 90.32258% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 86.126%. Comparing base (0bff410) to head (977efdf).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...egrations/SentryCrash/SentryCrashIntegration.swift	88.888%	3 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##              main     #7777       +/-   ##
=============================================
+ Coverage   85.135%   86.126%   +0.991%     
=============================================
  Files          487       487               
  Lines        29183     29214       +31     
  Branches     12612     12637       +25     
=============================================
+ Hits         24845     25161      +316     
+ Misses        4286      4002      -284     
+ Partials        52        51        -1     

Files with missing lines	Coverage Δ
...Utils/Sources/TestSentryNSProcessInfoWrapper.swift	90.000% <100.000%> (+1.111%)	⬆️
...rces/Swift/Helper/SentryExtraContextProvider.swift	100.000% <100.000%> (ø)
Sources/Swift/Helper/SentryProcessInfo.swift	92.307% <ø> (+57.692%)	⬆️
...egrations/SentryCrash/SentryCrashIntegration.swift	95.783% <88.888%> (-1.340%)	⬇️

... and 21 files with indirect coverage changes

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[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1228.71 ms	1262.20 ms	33.50 ms
Size	24.14 KiB	1.13 MiB	1.11 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
8d9e501	1233.04 ms	1260.40 ms	27.35 ms
d0b4402	1218.62 ms	1241.80 ms	23.18 ms
e06cf5f	1222.96 ms	1254.66 ms	31.70 ms
09a80f2	1214.78 ms	1237.85 ms	23.07 ms
17fe3fd	1224.77 ms	1259.00 ms	34.23 ms
dbfeb41	1215.17 ms	1237.41 ms	22.23 ms
0e4a9dc	1222.92 ms	1255.78 ms	32.86 ms
b882255	1216.49 ms	1253.66 ms	37.17 ms
4883c74	1224.80 ms	1258.65 ms	33.85 ms
5fff6ba	1206.13 ms	1232.49 ms	26.36 ms

App size

Revision	Plain	With Sentry	Diff
8d9e501	24.14 KiB	1.12 MiB	1.10 MiB
d0b4402	24.14 KiB	1.11 MiB	1.08 MiB
e06cf5f	24.14 KiB	1.13 MiB	1.10 MiB
09a80f2	24.14 KiB	1.10 MiB	1.08 MiB
17fe3fd	24.14 KiB	1.12 MiB	1.10 MiB
dbfeb41	24.14 KiB	1.04 MiB	1.02 MiB
0e4a9dc	24.14 KiB	1.11 MiB	1.09 MiB
b882255	24.14 KiB	1.12 MiB	1.09 MiB
4883c74	24.14 KiB	1.12 MiB	1.10 MiB
5fff6ba	24.14 KiB	1.13 MiB	1.10 MiB

Previous results on branch: feat/low-power-mode-context

Startup times

Revision	Plain	With Sentry	Diff
bda24a3	1228.45 ms	1258.63 ms	30.18 ms

App size

Revision	Plain	With Sentry	Diff
bda24a3	24.14 KiB	1.13 MiB	1.11 MiB