Add MPC node CPU/memory profiling during active sessions

[Marvy247]

Add built-in profiling that records CPU and memory usage per MPC session phase. Export as pprof or flamegraph-compatible format. Trigger profiling on demand via API.

[salamatabdulkarim-stack]

@salamatabdulkarim-stack has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hello maintainer I will like to work on this issue, Thank you

ℹ️ Repo Maintainers: To accept this application, review their application or assign @salamatabdulkarim-stack to this issue.

[gbolly122]

@gbolly122 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi maintainer I would love to work on this issue as a full stack developer

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[moon-code12]

@moon-code12 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi maintainer I would love to work on this issue as a full stack developer

ℹ️ Repo Maintainers: To accept this application, review their application or assign @moon-code12 to this issue.

[Davidemulo]

@Davidemulo has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

i will love to work on this issue

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[drips-wave]

Congratulations, @Davidemulo! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on August 31, 2026.

🧑‍💻 @Davidemulo: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

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