Document Notification Processing Flow

[Abd-Standard]

Description

Describe how notifications move through each stage of processing, from blockchain events to delivery.

Acceptance Criteria
Flow is documented.
Diagrams are included.
Documentation is reviewed.

[GazzyLee]

I'd like to take this on. I'll document the complete notification lifecycle—from blockchain event detection through processing, queuing, and final delivery—include clear architecture/flow diagrams, and ensure the guide is reviewed and easy for contributors and integrators to follow. Please assign

[KingYuss]

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

Let's get to it

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