fix: context defualts on native platforms other than iOS/Android

[vaind]

📜 Description

I've noticed windows doesn't have device context filled in. It's because originally we expected native integrations to sync from native iOS/Android to dart via LoadContexts(). This is not available with sentry-native which doesn't have such APIs.

To fix this, I've changed the logic to always set contexts in IoEnricherEventProcessor and made it so that it runs after the native _LoadContextsIntegrationEventProcessor. This way, the former will fill in the blanks all the time.

💡 Motivation and Context

💚 How did you test it?

📝 Checklist

• I reviewed submitted code
• I added tests to verify changes
• No new PII added or SDK only sends newly added PII if sendDefaultPii is enabled
• I updated the docs if needed
• All tests passing
• No breaking changes

🔮 Next steps

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.87%. Comparing base (25fc225) to head (ca374dd).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2439      +/-   ##
==========================================
- Coverage   86.94%   86.87%   -0.08%     
==========================================
  Files         257      257              
  Lines        9238     9239       +1     
==========================================
- Hits         8032     8026       -6     
- Misses       1206     1213       +7     

☔ View full report in Codecov by Sentry.
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[github-actions]

Android Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	471.09 ms	508.68 ms	37.59 ms
Size	6.49 MiB	7.56 MiB	1.07 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
62dde43	339.21 ms	423.06 ms	83.85 ms
5d2b46d	307.74 ms	349.85 ms	42.11 ms
4efee31	308.92 ms	368.68 ms	59.76 ms
4b943a1	348.17 ms	437.15 ms	88.98 ms
33d0587	308.79 ms	370.86 ms	62.07 ms
b98109e	296.46 ms	362.68 ms	66.22 ms
3de8b9b	348.55 ms	445.84 ms	97.29 ms
d53c6fa	282.83 ms	344.00 ms	61.17 ms
464b4d0	320.71 ms	380.02 ms	59.31 ms
2e8b1e1	367.00 ms	450.12 ms	83.12 ms

App size

Revision	Plain	With Sentry	Diff
62dde43	5.94 MiB	6.96 MiB	1.02 MiB
5d2b46d	6.16 MiB	7.13 MiB	1000.82 KiB
4efee31	5.94 MiB	6.92 MiB	1003.76 KiB
4b943a1	6.34 MiB	7.28 MiB	968.41 KiB
33d0587	6.16 MiB	7.14 MiB	1007.47 KiB
b98109e	6.06 MiB	7.03 MiB	993.53 KiB
3de8b9b	6.27 MiB	7.20 MiB	957.75 KiB
d53c6fa	6.16 MiB	7.14 MiB	1011.18 KiB
464b4d0	6.06 MiB	7.03 MiB	990.27 KiB
2e8b1e1	6.35 MiB	7.40 MiB	1.05 MiB

Previous results on branch: fix/native-contexts-propagation

Startup times

Revision	Plain	With Sentry	Diff
0eae47f	436.68 ms	472.85 ms	36.17 ms
c3fa61f	457.23 ms	520.26 ms	63.03 ms
0344dd8	475.67 ms	511.56 ms	35.89 ms

App size

Revision	Plain	With Sentry	Diff
0eae47f	6.49 MiB	7.56 MiB	1.07 MiB
c3fa61f	6.49 MiB	7.56 MiB	1.07 MiB
0344dd8	6.49 MiB	7.56 MiB	1.07 MiB

[github-actions]

iOS Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1231.43 ms	1256.87 ms	25.45 ms
Size	8.38 MiB	9.78 MiB	1.40 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
d7758e8	1271.69 ms	1288.08 ms	16.39 ms
379d7a8	1267.65 ms	1288.39 ms	20.74 ms
0118295	1211.31 ms	1227.02 ms	15.71 ms
8cb6557	1265.14 ms	1266.08 ms	0.94 ms
bf4aed7	1274.63 ms	1286.48 ms	11.85 ms
0210372	1255.49 ms	1280.98 ms	25.49 ms
9811573	1259.78 ms	1278.33 ms	18.55 ms
6a5a65d	1237.22 ms	1250.29 ms	13.07 ms
1edf30e	1254.43 ms	1272.82 ms	18.39 ms
3a43905	1254.31 ms	1266.35 ms	12.04 ms

App size

Revision	Plain	With Sentry	Diff
d7758e8	8.15 MiB	9.12 MiB	989.76 KiB
379d7a8	8.16 MiB	9.16 MiB	1.00 MiB
0118295	8.32 MiB	9.38 MiB	1.05 MiB
8cb6557	8.10 MiB	9.18 MiB	1.08 MiB
bf4aed7	8.10 MiB	9.17 MiB	1.08 MiB
0210372	8.38 MiB	9.73 MiB	1.35 MiB
9811573	8.16 MiB	9.17 MiB	1.01 MiB
6a5a65d	8.34 MiB	9.65 MiB	1.31 MiB
1edf30e	8.16 MiB	9.17 MiB	1.01 MiB
3a43905	8.10 MiB	9.18 MiB	1.08 MiB

Previous results on branch: fix/native-contexts-propagation

Startup times

Revision	Plain	With Sentry	Diff
0eae47f	1246.22 ms	1267.33 ms	21.11 ms
c3fa61f	1242.08 ms	1267.04 ms	24.96 ms
0344dd8	1252.76 ms	1267.66 ms	14.90 ms

App size

Revision	Plain	With Sentry	Diff
0eae47f	8.38 MiB	9.77 MiB	1.40 MiB
c3fa61f	8.38 MiB	9.77 MiB	1.40 MiB
0344dd8	8.38 MiB	9.77 MiB	1.40 MiB