Contracts: Add per-strategy performance watermark tracking for fee integrity

[Junirezz]

Track strategy high-water marks to ensure fee integrity and predictable accrual.

[1sraeliteX]

@1sraeliteX has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

I would like to work on this issue

ℹ️ Repo Maintainers: To accept this application, review their application or assign @1sraeliteX to this issue.

[Daniel202251]

@Daniel202251 has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Good Day maintainer
I would like to solve this issue
ETA:1HR

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Daniel202251 to this issue.

[Danitello123]

@Danitello123 has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Big man abeg assign me so i go fit pay school fees next semester
thanks in advance boss
ETA:1HR

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Danitello123 to this issue.

[DokaIzk]

@DokaIzk has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

gm gm can I please be assigned this?

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

[drips-wave]

Congratulations, @DokaIzk! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

🧑‍💻 @DokaIzk: 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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