fix: Save app context information on app hang events before saving to disk

[itaybre]

When we detect an ANR started, we store the event information in a JSON file so we can recover it if it is fatal.

We are applying the scope to the event before saving it, but there is some information that doesn't belong to the scope or might not be present, like:

• Release
• Environment
• Dist

In those cases when the event didn't have it stored, on the next launch, we are applying the current options to the stored event before uploading.

Because of this, we might end up with wrong information on this kind of events.

It is worth checking if this also applies to watchdog terminations events too.

Fixes: #5529

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.057%. Comparing base (8f33ee8) to head (c0388ea).
⚠️ Report is 11 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@              Coverage Diff              @@
##              main     #6998       +/-   ##
=============================================
+ Coverage   85.019%   85.057%   +0.037%     
=============================================
  Files          453       453               
  Lines        27643     27653       +10     
  Branches     12136     12137        +1     
=============================================
+ Hits         23502     23521       +19     
+ Misses        4093      4086        -7     
+ Partials        48        46        -2     

Files with missing lines	Coverage Δ
Sources/Sentry/SentryANRTrackingIntegration.m	96.376% <100.000%> (+0.164%)	⬆️

... and 19 files with indirect coverage changes

---

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[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1201.53 ms	1240.10 ms	38.57 ms
Size	24.14 KiB	1.02 MiB	1018.28 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
e8da57d	1203.77 ms	1234.85 ms	31.08 ms
d0f70ce	1226.54 ms	1247.04 ms	20.50 ms
89e74bc	1197.06 ms	1228.73 ms	31.67 ms
8203ac0	1235.59 ms	1256.02 ms	20.43 ms
884b224	1233.41 ms	1259.50 ms	26.09 ms
229b7b7	1219.45 ms	1249.36 ms	29.91 ms
483cc24	1218.00 ms	1242.59 ms	24.59 ms
e5773c1	1235.10 ms	1264.15 ms	29.04 ms
870b081	1226.77 ms	1246.33 ms	19.56 ms
827b50c	1233.27 ms	1267.28 ms	34.01 ms

App size

Revision	Plain	With Sentry	Diff
e8da57d	23.75 KiB	919.69 KiB	895.94 KiB
d0f70ce	23.75 KiB	913.09 KiB	889.34 KiB
89e74bc	23.75 KiB	969.78 KiB	946.03 KiB
8203ac0	23.75 KiB	959.44 KiB	935.69 KiB
884b224	23.75 KiB	879.60 KiB	855.86 KiB
229b7b7	24.15 KiB	1.01 MiB	1014.90 KiB
483cc24	24.14 KiB	1.01 MiB	1010.98 KiB
e5773c1	23.75 KiB	1.00 MiB	1005.08 KiB
870b081	23.75 KiB	974.89 KiB	951.15 KiB
827b50c	23.75 KiB	1.00 MiB	1005.07 KiB

Previous results on branch: itay/release_name

Startup times

Revision	Plain	With Sentry	Diff
87e5a60	1189.04 ms	1211.96 ms	22.92 ms

App size

Revision	Plain	With Sentry	Diff
87e5a60	24.14 KiB	1.02 MiB	1017.69 KiB

[philprime]

LGTM