[bug] farming-pool: unlock_assets doesn't emit credits_earned event

[ritaifeoluwa]

Problem

unlock_assets returns total credits but doesn't emit an event with the credits earned. Indexers cannot track credit distributions.

Impact

• Off-chain systems cannot track credit distributions
• No audit trail for credit earnings
• Credit analytics require storage scans

Fix

Add an event emission:

env.events().publish(
    (symbol_short!("pool"), symbol_short!("credits_earned")),
    (user, amount, total_credits),
);

Location

contracts/farming-pool/src/lib.rs, unlock_assets function, after line 500.

[ibiajnr]

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I have reviewed the issue, and i am very very confident that i am capable, and i can fix it if the task is given to me.

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[Olamidecare]

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Hi Maintainer! I’m interested in contributing to this task and would be glad to work on it. I’m committed to delivering a clean, well-tested solution within the expected timeline.

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[Enchanterme]

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Can i work on this task?

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[drips-wave]

Congratulations, @Enchanterme! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on September 30, 2026.

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[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox!

@Enchanterme's PR #426 was approved and merged by @ritaifeoluwa.

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👏 Great work, @Enchanterme! Keep contributing to SmartDropLabs.

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This issue has been completed by @Enchanterme as part of the Stellar Wave Program's 9th Wave 🥳

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