[WIP] Implement Email Format Validation

[Taliesin67]

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 introduces email format validation to improve user input quality and provide a better user experience. The implementation will focus on creating a robust validation mechanism to ensure that email addresses entered in the application meet standard formatting requirements.

Changes Made

• Add email validation utility function
• Update relevant form components to use email validation
• Implement client-side email format checking
• Prepare for potential server-side email validation

Tests

• Verify email validation for valid email formats
• Check rejection of invalid email formats
• Test edge cases for email validation
• Ensure validation provides clear user feedback

Signatures

Staking Key

8cyYCAMQu86WNoyLCBscxTe32EYqJREPHZgSs6xFc1fE: 3qfYeJaaopUaxj2yysg1WM9qYyGuNnZRyWPUcDXxPj2wcdwPDyAgVsaWjTTkAChLxoMpsP4qPUeZVPWwm4MDM3ku6zvM9UxQAJBsWFn28MnGYLksVzNwqucPgL7v9KbxoGGn1UYXNZiTyAwx5hL4vT8hgaoSLNqiBfGPQA6r5wBMritt6nmFH7ims1gLRYM7cX9VKn5uLDkoLzxQrXEHzRJkUy3Jwfh65Efj43tgJ7tuQXdCDyaT5NBJRJaxSSkWWBTYaCSNCUdBxWu4GbmGEy63fqJufWSz5ARnLACjXYVUEmKQX1bEyVAyg45cpx83czHY7avYbQsP5toRJw2DhbHthQSGkZnxfjuykXchXLSM2a4j7GCzfGSzhSNEeoTPkhDheHbrQpE8KLtYn3K1KTEKrAEBwkmpXGGU

Public Key

Hoa4igay5ataNJBdvrx4R5kZ7adcw7Zz4qq8ewEbrzRe: 2gmsnctSY7VobyQRT9qxocixmXz5fboJiX8Aay9egrhQPTtsK61snuiVoiztxTqDM7avJDJEkSq31NJumqADsrrLDCDbb3i7Gufz9XgC1ecMz7uTngvJ2bG2X5kLWGymcHYKFpD3Lpjv4D7d3uiupCYWSxErTd6R1oQYDPAVceecz5CF9GW72diSWwyJNXWUgYg3d2jtSqhcLPmcGwzrLQzS2BFuqSQVZgMw8riT84ArJm3LACZ18gBqsiYSj5cw92ikiL9YVze58c6gefCpY3oBoP8wDKSc24QZHKAE8hFEV3c9w8hsUq4EjJzbDNB5R3E1mfzhpRTEVuRVG7p32jWKXtX8YLcX2EuQJEz4cWu1rJd66bfDveGwBjC8LS8wxZ6eW9CqFzhf65DJerauMoVfg2yVtPqvBcS8