Harden CSV export and import schema normalization

[Baskarayelu]

Description

Implement stricter CSV schema normalization and validation for migration flows involving savings goal data.

Requirements and context

• Must be secure, tested, and documented
• Should be efficient and easy to review
• Reject ambiguous headers and malformed row types

Suggested execution

• Fork the repo and create a branch
• git checkout -b feature/migration-csv-schema-normalization
• Implement changes
• Write contract: data_migration/src/lib.rs
• Write comprehensive tests: data_migration/src/lib.rs
• Add documentation: README.md
• Include NatSpec-style comments
• Validate security assumptions

Test and commit

• Run tests: cargo test -p data_migration
• Cover edge cases
• Include test output and security notes

Example commit message

feat: harden csv schema normalization for migration flows

Guidelines

• Minimum 95 percent test coverage
• Clear documentation
• Timeframe: 96 hours

[uche102]

@uche102 has applied to work on this issue as part of the Stellar Wave Program's 3rd wave.

Hi i would like to work on this as i have experience importing csv files

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[KayProject]

@KayProject has applied to work on this issue as part of the Stellar Wave Program's 3rd wave.

Hey maintainer can i work on this issue
i would ensure its is tested and well documented and i will submit on time for your approval

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[vrickish]

@vrickish has applied to work on this issue as part of the Stellar Wave Program's 3rd wave.

Hi, Maintainer. I would like to work on this project.

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[Abolax123]

@Abolax123 has applied to work on this issue as part of the Stellar Wave Program's 3rd wave.

I can implement stricter CSV schema normalization and validation for the migration flows, ensuring ambiguous headers and malformed rows are rejected. I will update data_migration/src/lib.rs with secure, efficient logic, write comprehensive tests covering all edge cases, add NatSpec-style documentation in the README, and validate security assumptions. The work will follow clear commit practices and achieve ≥95% test coverage within the 96-hour timeframe.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Abolax123 to this issue.

[suleimanahmad]

Hi, I’d like to take this on.

I have experience working with data validation, schema normalization, and secure data handling. I can implement strict CSV parsing and validation to reject ambiguous headers and malformed rows, while keeping the logic efficient and easy to review.

I’ll include comprehensive tests, clear documentation (with NatSpec-style comments), and validate key security assumptions to ensure safe migration flows. I’ll also cover edge cases and provide test outputs as required.

Looking forward to contributing!