fix: load contexts not setting the user

[buenaflor]

📜 Description

By default the user's ip address is now {{auto}} so the user object is never null, however when loading the native context we check if user == null then we retrieve it. and by default we get the ID that way. but since the user is never null now by default, we don't retrieve it anymore.

https://github.com/getsentry/sentry-dart/blob/main/flutter/lib/src/integrations/load_contexts_integration.dart#L113

Solution: move setting the default ipAddress to after the event processors have run

💡 Motivation and Context

Fixes #2062

💚 How did you test it?

Added another test + manual testing

📝 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 95.25%. Comparing base (0b22d2d) to head (6ebd295).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2089   +/-   ##
=======================================
  Coverage   95.25%   95.25%           
=======================================
  Files          54       54           
  Lines        1791     1791           
=======================================
  Hits         1706     1706           
  Misses         85       85           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[github-actions]

Android Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	375.50 ms	453.22 ms	77.72 ms
Size	6.35 MiB	7.34 MiB	1008.36 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
8f88a49	364.98 ms	413.78 ms	48.80 ms
daa1b33	366.98 ms	451.59 ms	84.61 ms
04db237	330.16 ms	428.38 ms	98.22 ms
afa6e2a	349.73 ms	428.48 ms	78.75 ms
e2d89fc	323.84 ms	376.23 ms	52.39 ms
86d4841	286.35 ms	372.43 ms	86.08 ms
8609bd8	359.76 ms	437.40 ms	77.64 ms
72dfc83	298.62 ms	340.14 ms	41.52 ms
870f5eb	329.45 ms	369.29 ms	39.84 ms
f79eecf	341.35 ms	388.98 ms	47.63 ms

App size

Revision	Plain	With Sentry	Diff
8f88a49	6.34 MiB	7.30 MiB	979.60 KiB
daa1b33	6.27 MiB	7.20 MiB	956.36 KiB
04db237	5.94 MiB	6.95 MiB	1.01 MiB
afa6e2a	6.27 MiB	7.20 MiB	955.69 KiB
e2d89fc	6.06 MiB	7.03 MiB	989.37 KiB
86d4841	6.15 MiB	7.13 MiB	1000.49 KiB
8609bd8	6.27 MiB	7.20 MiB	959.07 KiB
72dfc83	5.94 MiB	6.92 MiB	1001.71 KiB
870f5eb	5.94 MiB	6.92 MiB	1005.77 KiB
f79eecf	6.15 MiB	7.13 MiB	1000.07 KiB

Previous results on branch: fix/affected-user-metric

Startup times

Revision	Plain	With Sentry	Diff
4182952	371.37 ms	441.41 ms	70.04 ms
e42f069	370.96 ms	450.21 ms	79.26 ms
39b67f2	444.76 ms	522.12 ms	77.37 ms
77e659f	426.14 ms	491.68 ms	65.54 ms
d14f206	410.54 ms	487.51 ms	76.97 ms

App size

Revision	Plain	With Sentry	Diff
4182952	6.35 MiB	7.34 MiB	1008.09 KiB
e42f069	6.35 MiB	7.34 MiB	1008.08 KiB
39b67f2	6.35 MiB	7.33 MiB	1006.04 KiB
77e659f	6.35 MiB	7.34 MiB	1008.08 KiB
d14f206	6.35 MiB	7.34 MiB	1008.08 KiB

[github-actions]

iOS Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1216.92 ms	1243.81 ms	26.89 ms
Size	8.33 MiB	9.55 MiB	1.21 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
3f23617	1261.93 ms	1286.10 ms	24.17 ms
ca7f531	1242.51 ms	1282.61 ms	40.10 ms
d783424	1265.71 ms	1277.00 ms	11.29 ms
754cdbe	1261.67 ms	1280.88 ms	19.20 ms
a7acb24	1296.71 ms	1317.69 ms	20.98 ms
f2db4ec	1244.14 ms	1259.79 ms	15.65 ms
25e9b59	1289.76 ms	1295.27 ms	5.51 ms
683fd34	1239.83 ms	1259.08 ms	19.25 ms
b8562d0	1249.92 ms	1267.56 ms	17.64 ms
3e9fb0e	1262.49 ms	1280.65 ms	18.16 ms

App size

Revision	Plain	With Sentry	Diff
3f23617	8.16 MiB	9.17 MiB	1.01 MiB
ca7f531	8.32 MiB	9.38 MiB	1.06 MiB
d783424	8.29 MiB	9.38 MiB	1.09 MiB
754cdbe	8.29 MiB	9.37 MiB	1.08 MiB
a7acb24	8.16 MiB	9.17 MiB	1.01 MiB
f2db4ec	8.10 MiB	9.16 MiB	1.07 MiB
25e9b59	8.16 MiB	9.15 MiB	1021.15 KiB
683fd34	8.28 MiB	9.34 MiB	1.06 MiB
b8562d0	8.33 MiB	9.54 MiB	1.22 MiB
3e9fb0e	8.15 MiB	9.12 MiB	989.77 KiB

Previous results on branch: fix/affected-user-metric

Startup times

Revision	Plain	With Sentry	Diff
e42f069	1249.78 ms	1266.40 ms	16.62 ms
39b67f2	1238.86 ms	1258.29 ms	19.43 ms
d14f206	1226.80 ms	1247.76 ms	20.96 ms
4182952	1256.10 ms	1277.30 ms	21.20 ms

App size

Revision	Plain	With Sentry	Diff
e42f069	8.33 MiB	9.55 MiB	1.21 MiB
39b67f2	8.33 MiB	9.54 MiB	1.22 MiB
d14f206	8.33 MiB	9.55 MiB	1.21 MiB
4182952	8.33 MiB	9.55 MiB	1.21 MiB

[denrase]

LGTM 👍