- Remove 'required' attribute from Codex auth.json textarea
- Remove conditional 'required' logic from API key input field
- Clean up Codex Official preset by removing null OPENAI_API_KEY entry
- Allow more flexible form validation while maintaining backend checks
- Migrate all form components from ProviderForm/ to providers/forms/
- Create shared components to eliminate code duplication:
* ApiKeySection: unified API key input with "Get API Key" link
* EndpointField: unified endpoint URL input with manage button
- Refactor ClaudeFormFields (-31% lines) and CodexFormFields (-33% lines)
- Update all import paths to use new locations
- Reduce code duplication from ~12% to ~7%
This change improves maintainability and makes the codebase more DRY.
