Issue 13: Automated revenue share calculator

[BigBen-7]

Description:
Python service to calculate organizer revenue shares based on ticket sales and smart contract rules.
Acceptance Criteria:

• Accepts event ID and total sales
• Applies revenue split logic
• Returns payout per stakeholder

[DhanashreePetare]

@BigBen-7 can you please assign this to me

[DhanashreePetare]

Thankyou @BigBen-7 ! I will start working on it.
Just a small concern. will this be considered as contribution in hacktoberfest as I could not see hacktoberfest tag attached above.