Move All DTOs to Their Domain Modules (`dto/`)

[Villarley]

🧩 Issue: Move All DTOs to Their Domain Modules (dto/)

📝 Description

DTOs are currently in src/dtos/. Move them into their respective src/modules/<domain>/dto/ folders.

✅ Tasks

• Move DTOs to the correct module.
• Normalize validations (e.g. class-validator).
• Write unit tests for validation edge cases in src/modules/<domain>/__tests__/dto/.
• Delete src/dtos/ after migration.

✅ Definition of Done

• All DTOs are colocated within their domain modules
• Validations are consistently implemented
• Unit tests cover edge cases
• Legacy src/dtos/ directory is removed

📝 Additional Notes

• Verify DTOs are used correctly in controllers and services after move
• Use class-transformer if needed to handle nested transformations
• 📌 Upload a draft PR within 36 hours (It doesn't matter if it's not finished—just let us know you're working, also via Telegram if you have to report something)

[blurbeast]

i'd love to give a shot at this .

[RUKAYAT-CODER]

Hi, am a backend developer, i build scalable, maintainable and robust solution. i will like to take up this task

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[martinvibes]

Hi, I’d like to apply for this issue. I have experience in both full stack developer (React, nestjs, nodejs, python, Nextjs ethers.js/web3.js) and smart contract development with (solidity, cairo and rust). I can build responsive interfaces and securely connect them to blockchain networks. I’m excited to contribute to this project!

Kindly assign sir :)
Pls i admire your project and i have full interest in contributing to it

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