Save user emails lowercase (DEV-1164)

[mikefeldberg]

DEV-1164

Summary by Sourcery

Bug Fixes:

• Fix issue where user emails were not saved in lowercase.

[sourcery-ai]

Reviewer's Guide by Sourcery

This PR implements DEV-1164 by ensuring that user emails are saved in lowercase. It modifies the save method of the User model to convert the email to lowercase before saving. It also adds a test to verify the change.

Sequence diagram for email lowercase conversion during user save

sequenceDiagram
    participant Client
    participant User
    participant Database

    Client->>User: save(email='Test@Example.com')
    activate User
    Note over User: Convert email to lowercase
    User->>User: email = email.lower()
    User->>Database: save user with email='test@example.com'
    Database-->>User: confirmation
    User-->>Client: saved user
    deactivate User

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Class diagram showing User model changes

classDiagram
    class User {
        +email: str
        +save(*args, **kwargs)
    }
    note for User "Modified save() method to convert email to lowercase"

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File-Level Changes

Change	Details	Files
Convert user emails to lowercase before saving	Added a save method to the User model to convert the email to lowercase before saving it.	apps/betterangels-backend/accounts/models.py
Add a test to verify email lowercasing	Added a test case to check that the email is converted to lowercase when a user is created.	apps/betterangels-backend/accounts/tests/test_models.py

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[sourcery-ai]

Hey @mikefeldberg - I've reviewed your changes and they look great!

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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[lena]

does the login code also downcase the input? @mikefeldberg