enh: refactor setExtra and removeExtra to FFI/JNI

[buenaflor]

📜 Description

Part of moving away from method channels

💡 Motivation and Context

Closes #3204

💚 How did you test it?

Manual, integration tests

📝 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

[github-actions]

🚨 Detected changes in high risk code 🚨

High-risk code has higher potential to break the SDK and may be hard to test. To prevent severe bugs, apply the rollout process for releasing such changes and be extra careful when changing and reviewing these files:

• packages/flutter/android/src/main/kotlin/io/sentry/flutter/SentryFlutterPlugin.kt

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.22%. Comparing base (bfabaf2) to head (bd9f890).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3314      +/-   ##
==========================================
+ Coverage   88.13%   89.22%   +1.09%     
==========================================
  Files         295       99     -196     
  Lines       10120     3406    -6714     
==========================================
- Hits         8919     3039    -5880     
+ Misses       1201      367     -834     

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

[denrase]

Just one question.

[github-actions]

Android Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	416.71 ms	435.39 ms	18.67 ms
Size	13.93 MiB	15.06 MiB	1.13 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
4298701	524.40 ms	633.30 ms	108.90 ms
54acf91	487.24 ms	529.60 ms	42.36 ms
eca355d	485.50 ms	569.85 ms	84.35 ms
6bcdc99	440.23 ms	435.77 ms	-4.46 ms
dbd526b	504.88 ms	569.02 ms	64.15 ms
cf443d2	464.64 ms	479.04 ms	14.40 ms
2cf9161	454.12 ms	512.67 ms	58.55 ms
4481076	484.08 ms	505.70 ms	21.61 ms
e2d675d	457.92 ms	529.17 ms	71.25 ms
7cfbbd6	499.69 ms	592.24 ms	92.55 ms

App size

Revision	Plain	With Sentry	Diff
4298701	6.54 MiB	7.71 MiB	1.17 MiB
54acf91	6.54 MiB	7.70 MiB	1.17 MiB
eca355d	6.54 MiB	7.70 MiB	1.16 MiB
6bcdc99	13.93 MiB	15.00 MiB	1.06 MiB
dbd526b	6.54 MiB	7.69 MiB	1.15 MiB
cf443d2	13.93 MiB	15.00 MiB	1.06 MiB
2cf9161	6.54 MiB	7.70 MiB	1.16 MiB
4481076	6.54 MiB	7.69 MiB	1.15 MiB
e2d675d	6.54 MiB	7.69 MiB	1.15 MiB
7cfbbd6	6.54 MiB	7.70 MiB	1.17 MiB

Previous results on branch: enh/ffi-jni-extras-set

Startup times

Revision	Plain	With Sentry	Diff
7ac21d9	387.67 ms	383.59 ms	-4.08 ms
3b8d068	383.06 ms	386.82 ms	3.76 ms
19bd02d	429.82 ms	447.82 ms	17.99 ms
580e5c5	375.88 ms	379.17 ms	3.29 ms
4be3592	381.31 ms	372.36 ms	-8.95 ms
674d8bb	369.83 ms	379.08 ms	9.26 ms
0155ce9	400.14 ms	435.90 ms	35.76 ms
2ad66c2	367.17 ms	369.11 ms	1.93 ms

App size

Revision	Plain	With Sentry	Diff
7ac21d9	13.93 MiB	15.06 MiB	1.13 MiB
3b8d068	13.93 MiB	15.06 MiB	1.13 MiB
19bd02d	13.93 MiB	15.06 MiB	1.13 MiB
580e5c5	13.93 MiB	15.06 MiB	1.13 MiB
4be3592	13.93 MiB	15.06 MiB	1.13 MiB
674d8bb	13.93 MiB	15.06 MiB	1.13 MiB
0155ce9	13.93 MiB	15.06 MiB	1.13 MiB
2ad66c2	13.93 MiB	15.06 MiB	1.13 MiB

[github-actions]

iOS Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1269.80 ms	1274.80 ms	5.00 ms
Size	5.53 MiB	6.01 MiB	487.96 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
8541716	1270.18 ms	1271.80 ms	1.62 ms
9b99523	1256.06 ms	1270.33 ms	14.27 ms
e2d675d	1238.48 ms	1242.76 ms	4.28 ms
bfabaf2	1251.72 ms	1253.38 ms	1.67 ms
2cf9161	1248.33 ms	1266.55 ms	18.22 ms
819c1e7	1250.59 ms	1249.08 ms	-1.51 ms
32914d8	1275.47 ms	1285.20 ms	9.73 ms
de377fd	1252.28 ms	1254.76 ms	2.48 ms
e04b24b	1230.22 ms	1233.90 ms	3.67 ms
5b9a0da	1249.69 ms	1250.71 ms	1.03 ms

App size

Revision	Plain	With Sentry	Diff
8541716	5.53 MiB	6.00 MiB	479.96 KiB
9b99523	7.86 MiB	9.44 MiB	1.58 MiB
e2d675d	7.86 MiB	9.44 MiB	1.58 MiB
bfabaf2	5.53 MiB	6.01 MiB	487.95 KiB
2cf9161	7.86 MiB	9.44 MiB	1.58 MiB
819c1e7	5.53 MiB	6.00 MiB	479.96 KiB
32914d8	7.86 MiB	9.44 MiB	1.58 MiB
de377fd	20.71 MiB	22.43 MiB	1.73 MiB
e04b24b	5.53 MiB	6.00 MiB	480.00 KiB
5b9a0da	5.53 MiB	5.96 MiB	444.32 KiB

Previous results on branch: enh/ffi-jni-extras-set

Startup times

Revision	Plain	With Sentry	Diff
2ad66c2	1264.88 ms	1265.20 ms	0.33 ms
7ac21d9	1253.00 ms	1254.51 ms	1.51 ms
580e5c5	1236.85 ms	1237.71 ms	0.86 ms
3b8d068	1244.55 ms	1246.49 ms	1.94 ms
19bd02d	1259.00 ms	1262.14 ms	3.14 ms
0155ce9	1249.80 ms	1252.81 ms	3.01 ms
674d8bb	1269.27 ms	1277.84 ms	8.57 ms
4be3592	1245.00 ms	1247.08 ms	2.08 ms

App size

Revision	Plain	With Sentry	Diff
2ad66c2	5.53 MiB	6.01 MiB	487.96 KiB
7ac21d9	5.53 MiB	6.01 MiB	487.95 KiB
580e5c5	5.53 MiB	6.01 MiB	487.96 KiB
3b8d068	5.53 MiB	6.01 MiB	487.95 KiB
19bd02d	5.53 MiB	6.01 MiB	487.95 KiB
0155ce9	5.53 MiB	6.01 MiB	487.96 KiB
674d8bb	5.53 MiB	6.01 MiB	487.94 KiB
4be3592	5.53 MiB	6.01 MiB	487.97 KiB