Align event parser contracts with Rust event schema as a generated artifact

[grantfox-oss]

Refactor / Enhancement
Impact: Rust event schemas live in app/contract/contracts/quickex/src/events.rs, while TypeScript parser expectations live separately in backend ingestion code. Manual drift can break event ingestion silently during contract releases.

Affected areas: app/contract/contracts/quickex/src/events.rs, app/backend/src/ingestion/soroban-event.parser.ts, app/backend/src/ingestion/types/contract-event.types.ts, app/backend/src/ingestion/__tests__/*schema*, app/backend/docs/openapi.yaml, contract docs.

Implementation scope:

• Define a machine-readable event schema source or export generated JSON from the contract package.
• Generate TypeScript event names, payload keys, compatibility versions, and parser validation fixtures.
• Add CI check that backend schema matches the contract schema.
• Expand unknown-schema handling docs and operational alerts.

Acceptance criteria:

• Adding or changing a Rust event field fails backend tests until parser fixtures are updated.
• Backend parser compatibility versions are derived from the same source as contract docs.
• Unknown schema metrics include contract ID, event name, schema version, and paging token.

[somgoli]

Hi, i just reviewed the issue description and will like to work on this. ETA: 5hours. Thank you

[shadrach68]

I would like to work on this issue because I am a full-stack developer with 5+ years experience. I focus on identifying root causes and delivering clean, efficient, and maintainable solutions, with thorough testing to ensure reliable results.

[amberly-d]

Can i work on this?

[grantfox-oss]

🦊 GrantFox — @amberly-d has been assigned to this issue as part of the Official Campaign campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #7)
2. Your PR will be reviewed by the BlockDash-Studios maintainers

Good luck! Track your progress on GrantFox.

[MaryammAli]

@amberly-d
what is the update on this issue?

[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox as part of the Official Campaign campaign!

@amberly-d's PR #69 was approved and merged by @MaryammAli.

🏆 @amberly-d: You earned 35 FoxPoints for this contribution! Your current tier: Explorer (51 total points). Track your full progress on GrantFox.

👏 Great work, @amberly-d! Keep contributing to BlockDash-Studios.