[SR] Add buffer mode and link replays with events/transactions

[romtsn]

#skip-changelog

📜 Description

• Add buffer mode to buffer last 30s of replay and send them together with an error/crash event
• Link replays with events/transactions via the DSC and the replayId tag

💡 Motivation and Context

Part of getsentry/sentry#63255

💚 How did you test it?

📝 Checklist

• I reviewed the submitted code.
• I added tests to verify the changes.
• No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled.
• I updated the docs if needed.
• Review from the native team if needed.
• No breaking change or entry added to the changelog.
• No breaking change for hybrid SDKs or communicated to hybrid SDKs.

🔮 Next steps

[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	390.88 ms	440.35 ms	49.47 ms
Size	1.70 MiB	2.30 MiB	616.01 KiB

Previous results on branch: rz/feat/session-replay-errors

Startup times

Revision	Plain	With Sentry	Diff
1231ec5	411.18 ms	494.74 ms	83.56 ms
5424c0f	455.18 ms	589.02 ms	133.84 ms
b53cf2b	395.90 ms	471.88 ms	75.98 ms
b35a95b	335.13 ms	432.96 ms	97.83 ms

App size

Revision	Plain	With Sentry	Diff
1231ec5	1.70 MiB	2.30 MiB	615.85 KiB
5424c0f	1.70 MiB	2.30 MiB	615.63 KiB
b53cf2b	1.70 MiB	2.30 MiB	615.96 KiB
b35a95b	1.70 MiB	2.30 MiB	615.63 KiB

[markushi]

Looking good, left a few minor comments 🚀

[brustolin]

LGTM!!

Some good ideas to implement in Cocoa!!