feat(sdk): Add JS Core metrics

[krystofwoldrich]

📢 Type of change

• Bugfix
• New feature
• Enhancement
• Refactoring

📜 Description

Adds JS metrics to RN.

💡 Motivation and Context

closes: #3578

💚 How did you test it?

sample apps

📝 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
• All tests passing
• No breaking changes

🔮 Next steps

[github-actions]

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

Generated by 🚫 dangerJS against f618631

[bruno-garcia]

nice being able to leverage core JS!

[github-actions]

iOS (new) Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1212.33 ms	1212.35 ms	0.01 ms
Size	2.92 MiB	3.46 MiB	558.96 KiB

Baseline results on branch: deps/scripts/update-javascript.sh

Startup times

Revision	Plain	With Sentry	Diff
2f190d7+dirty	1272.39 ms	1280.80 ms	8.41 ms
5eab2fa+dirty	1284.29 ms	1306.68 ms	22.39 ms
60ceb06+dirty	1242.86 ms	1253.76 ms	10.90 ms
98fe518+dirty	1259.43 ms	1263.60 ms	4.17 ms
9861638+dirty	1209.39 ms	1210.82 ms	1.43 ms
ac92119+dirty	1264.78 ms	1273.36 ms	8.58 ms
de7c573+dirty	1238.06 ms	1242.26 ms	4.20 ms
6f9eae7+dirty	1256.06 ms	1278.59 ms	22.53 ms
8a5e51c+dirty	1259.88 ms	1269.09 ms	9.21 ms
dd975cb+dirty	1242.08 ms	1252.42 ms	10.34 ms

App size

Revision	Plain	With Sentry	Diff
2f190d7+dirty	2.92 MiB	3.44 MiB	535.84 KiB
5eab2fa+dirty	2.92 MiB	3.40 MiB	495.21 KiB
60ceb06+dirty	2.92 MiB	3.41 MiB	499.07 KiB
98fe518+dirty	2.92 MiB	3.40 MiB	488.60 KiB
9861638+dirty	2.92 MiB	3.46 MiB	557.26 KiB
ac92119+dirty	2.92 MiB	3.44 MiB	536.24 KiB
de7c573+dirty	2.92 MiB	3.42 MiB	516.27 KiB
6f9eae7+dirty	2.92 MiB	3.40 MiB	494.93 KiB
8a5e51c+dirty	2.92 MiB	3.41 MiB	499.88 KiB
dd975cb+dirty	2.92 MiB	3.43 MiB	520.26 KiB

[krystofwoldrich]

• docs Add Sentry.metrics for React Native SDK sentry-docs#9119

[lucas-zimerman]

LGTM!

[krystofwoldrich]

• blocked by fix(ci): Fix iOS builds failing Hermes cocoapods #3592

[github-actions]

Android (legacy) Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	383.64 ms	392.02 ms	8.38 ms
Size	17.73 MiB	19.91 MiB	2.17 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
3853f43	329.68 ms	346.32 ms	16.64 ms
e2b64fe	316.88 ms	330.23 ms	13.35 ms
1d86dd6	405.14 ms	411.06 ms	5.92 ms
9433f35	347.64 ms	356.22 ms	8.58 ms
34aba08	328.10 ms	342.84 ms	14.74 ms
8900e1a+dirty	430.68 ms	456.13 ms	25.44 ms
e73f4ed+dirty	332.96 ms	354.33 ms	21.37 ms
e5c9b8b	409.02 ms	426.66 ms	17.64 ms
acadc0f+dirty	373.24 ms	381.51 ms	8.27 ms
ad6c299	375.94 ms	382.02 ms	6.08 ms

App size

Revision	Plain	With Sentry	Diff
3853f43	17.73 MiB	19.81 MiB	2.08 MiB
e2b64fe	17.73 MiB	19.80 MiB	2.07 MiB
1d86dd6	17.73 MiB	19.86 MiB	2.12 MiB
9433f35	17.73 MiB	19.81 MiB	2.08 MiB
34aba08	17.73 MiB	19.80 MiB	2.07 MiB
8900e1a+dirty	17.73 MiB	19.75 MiB	2.01 MiB
e73f4ed+dirty	17.73 MiB	20.04 MiB	2.31 MiB
e5c9b8b	17.73 MiB	19.83 MiB	2.10 MiB
acadc0f+dirty	17.73 MiB	19.75 MiB	2.01 MiB
ad6c299	17.73 MiB	19.75 MiB	2.02 MiB

[github-actions]

iOS (legacy) Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1206.57 ms	1208.37 ms	1.80 ms
Size	2.36 MiB	2.90 MiB	554.67 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
80b2ce3+dirty	1265.92 ms	1268.60 ms	2.69 ms
d7401ac+dirty	1252.38 ms	1275.04 ms	22.66 ms
e5c9b8b+dirty	1258.57 ms	1267.32 ms	8.75 ms
acadc0f+dirty	1264.38 ms	1290.06 ms	25.68 ms
728164b+dirty	1256.10 ms	1259.08 ms	2.98 ms
3ffcddd+dirty	1244.47 ms	1264.14 ms	19.67 ms
9a3ca65+dirty	1247.06 ms	1274.58 ms	27.52 ms
457e29f+dirty	1253.94 ms	1269.18 ms	15.24 ms
12427f4+dirty	1267.15 ms	1271.30 ms	4.15 ms
2534337+dirty	1225.08 ms	1230.26 ms	5.17 ms

App size

Revision	Plain	With Sentry	Diff
80b2ce3+dirty	2.36 MiB	2.84 MiB	486.98 KiB
d7401ac+dirty	2.36 MiB	2.83 MiB	481.14 KiB
e5c9b8b+dirty	2.36 MiB	2.87 MiB	520.43 KiB
acadc0f+dirty	2.36 MiB	2.83 MiB	480.37 KiB
728164b+dirty	2.36 MiB	2.88 MiB	530.38 KiB
3ffcddd+dirty	2.36 MiB	2.84 MiB	489.60 KiB
9a3ca65+dirty	2.36 MiB	2.82 MiB	462.89 KiB
457e29f+dirty	2.36 MiB	2.87 MiB	520.67 KiB
12427f4+dirty	2.36 MiB	2.88 MiB	530.38 KiB
2534337+dirty	2.36 MiB	2.88 MiB	525.47 KiB