[WIP] Implement Email Format Validation

[Vuk7912]

Implement Email Format Validation

Description

Task

Implement Email Format Validation

Acceptance Criteria

• Implement RFC 5322 standard email format validation regex
  Ensure email validation prevents registration with invalid email formats
  Add database-level unique constraint on email field
  Create unit tests covering at least 10 different email format scenarios (valid and invalid)
  Implement case-insensitive email uniqueness check

Summary of Work

This pull request adds email format validation to improve user input quality and ensure data integrity across the application.

Key objectives:

• Create a robust email validation mechanism
• Implement client-side and potentially server-side email format checks
• Provide clear and user-friendly error feedback for invalid email formats

Planned changes:

• Add email validation utility function
• Update relevant form components to integrate email validation
• Implement validation logic with support for common email formats
• Ensure consistent error handling and user experience

Changes Made

• Create email validation utility function
• Update form input validation logic
• Add email format error handling

Tests

• Verify email validation for valid email formats
• Verify email validation for invalid email formats
• Ensure error messages are clear and descriptive

Signatures

Staking Key

3oBzgQ4y8YtmkxYGkse1fKKefi25twpMKU9BBdsYtjDQ: 6W7fbWesrLeLdCvY6gsvgDM2ZgBViHNLzAnMmWFhowCgukaGX1amxaZQMz2kQRuxX6Zy7qA7HXuoSPjoFEGh7SM6wdDZpaAMFMbEKAFsVZaV5SQddCtZmD2LYuhDPg1ZQoWLTn6sb55xsKwmKBmZKhqcRAa6xisgs3KzdaDAEETau8mzbuBBQGcGgH2rKEV3SFKdhMkQF2TbCDkSpqLTzLaoZXUi51MytDEUxFoUPG5NmU3DLm9U2CyjqZik1vFg3BaUK7XZPPgbRC25NbGL8do5YY8gZ7ffE19sAAN2FEZ6e4x1gUf4SXQMFWQRwRWWWiDbhfcB3RvVgA6599rmucvKSGHJsZdxHNDtZMKxNDAbokxRzGpiBgubw7it6s2fo1apwcLKDtH5H23hEUamBnMSUsbwFGG

Public Key

4WA5vRJLthsg6sJqVc6DQuRkGzvoxZ11SkqzwbqxCo2V: 25X4o2azGqFe3H6PLd24KxnTAQeSsMq5xoTkREQxiAXJumVxLY3XjoduTuNCJE1ggWmagwGZQhksUyuyVQwEoZUSD5EY9cuGpcRwo4gU2iPZYPGT39LdpExcpebiQ9sR8Ah6ckYCcmEKnBMQdzJxJhWE8MjKhwLF8ux2eSTNQzexHCsHmBo7jikn4AYo91KCogNHVV47Twc3DsvNUQAAYMRZWXwb9FdktMUiNNewXJ4yLiFWWdmm6HgPpunz9CsUCsFteLzKwAYEVNYcBCKgXyLDt1pqXMq7G4rGnxJuiL3HeCuK9uNCFycju3YZtjW5kYeKAK7ZDcZCWXADG2rJaHNWKf9GSTKyLUup3BChzbaYVLi3cQtjTnuyR9ewF9QvTFwqvZ8yp7mmSaw4rud1WGJofAyTujet