Implement Update User Profile Endpoint

[ayshadogo]

Description:
Allow users to update their profile information.

Tasks:

• Create PATCH /users/profile endpoint
• Create UpdateUserDto with validation
• Allow updates: name, country, bio, avatar
• Prevent updates to email, role, kyc_status
• Validate wallet address format if provided
• Return updated profile

Acceptance Criteria:

• Users can update allowed fields only
• Email and role cannot be changed
• Wallet address is validated
• Returns 400 on invalid data

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[drips-wave]

This issue has been added to the Stellar Wave Program and is worth 200 Points.

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[mftee]

@mftee has applied to work on this issue as part of the Stellar Wave Program's 2nd wave.

Hi Maintainer, i can handle this as well like the other issue.

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[drips-wave]

Congratulations, @mftee! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on February 26, 2026.

🧑‍💻 @mftee: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

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