feat(notifications): wire RabbitMQ publish path in notification service (rabbitClient is nil)

[cypriannwokolo2-creator]

Summary

notification.NewService(repo, nil, wsBroadcaster) passes a nil RabbitMQ client (main.go:127), so the :76-83 publish path is dead and only in-app rows + (broken) WS broadcast remain.

Acceptance Criteria

• Pass a real RabbitMQ client
• Publish notification events to the queue
• Consumer updates in-app/email/WS channels
• Tests

Complexity

High.

[Sensei-Victor]

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THIS IS MY DOMINANT FIELD

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[Joseph-1-Duro]

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Hi team, I would love to handle this issue

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[primexk5]

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Gm maintainer please assign me to work on this issue, thank you!

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[Teescom]

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

i will like to work on this

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