[L-1] Missing `Event` emission at the end of the

`cancelParticipation` function. Off-chain or front-end system

inability to update Users interraction with the protocol.

The `cancelParticipation()` function does not emit an event when a user cancels their participation. As a result, off-chain systems, front-ends relying on events to track user activity cannot detect cancellations directly. While the internal state is updated correctly

(staked assets are refunded and shares burned), the absence of

an event reduces transparency and traceability.

The issue has minimal impact on the protocol,

as the core functionality remains unaffected and user funds are

handled correctly. However, off-chain systems, analytics,

or front-end applications that rely on events to track user

actions will not detect cancellations, which could lead to

incomplete reporting or monitoring gaps. There is no direct

exploitation vector associated with this issue, making it a

low-risk concern.

//add emit event after external call function is executed

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