Add unit tests for the wallet activity feed helper filtering events by type

[Chucks1093]

Summary

The wallet activity feed helper accepts an event type filter but its filtering logic has no unit tests. Tests should confirm that passing a type filter returns only matching events and that omitting the filter returns all events.

Scope

• Test passing type: 'buy' returns only buy events from a mixed event list
• Test passing type: 'sell' returns only sell events
• Test omitting the type filter returns all events regardless of type
• Test an empty event list returns an empty array regardless of filter

Acceptance Criteria

• Buy filter returns only buy events
• Sell filter returns only sell events
• No filter returns all events
• Empty list returns empty array

ETA: 12 hours

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[sarah-obasi-analytics]

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Hey there👋, can I work on this issue
I have experience and have reviewed the code; I can submit a PR within 2 days.

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[The-Big-Danny]

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hello, i'd love to work on this.

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[codeX-james]

@codeX-james has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hello! I’d love to take on this issue. I’ve reviewed the requirements and have a clear path forward for the implementation. I estimate I can have a PR ready within about 3 hours of being assigned. Could you please assign this to me?

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[JamesVictor-O]

@JamesVictor-O has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hello! I’d love to take on this issue. I’ve reviewed the requirements and have a clear path forward for the implementation. I estimate I can have a PR ready within about 3 hours of being assigned. Could you please assign this to me?

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