feat: configurable description maxLength and boolean required validation fix [3.x]

[ManukMinasyan]

Summary

• Configurable description maxLength: The description textarea in field and section management forms was hardcoded to 255 characters. Adds separate config keys for fields and sections (both default to 255), so projects needing longer descriptions (e.g. Agreement fields) can increase the limit independently.
• Boolean required validation fix: Laravel's required rule passes on false, so a "required" checkbox/toggle could be submitted unchecked. Now uses the accepted rule (rejects false/0/null) and markAsRequired() for the visual asterisk without injecting the broken required validation rule.

Config keys

// Field descriptions (stored in JSON settings column -- no DB limit)
'fields' => [
    'description_max_length' => 255,
],

// Section descriptions (stored in VARCHAR(255) column -- increasing beyond 255 requires a migration)
'sections' => [
    'description_max_length' => 255,
],

Changes

File	Change
config/custom-fields.php	Add fields.description_max_length and sections.description_max_length
src/Filament/Management/Schemas/FieldForm.php	Use fields.description_max_length config
src/Filament/Management/Schemas/SectionForm.php	Use sections.description_max_length config
src/Filament/Integration/Base/AbstractFormComponent.php	markAsRequired() for boolean fields
src/Services/ValidationService.php	Add accepted rule for required boolean fields
tests/Feature/Integration/ValidationCapabilitiesTest.php	5 new tests for boolean required validation

Test plan

• Required checkbox with false -> validation error
• Required checkbox with true -> passes
• Required toggle with false -> validation error
• Required toggle with true -> passes
• Non-required checkbox with false -> passes (regression guard)
• Full test suite passes (32/32)
• Pint clean
• PHPStan 0 errors

[Copilot]

Pull request overview

Adds configurability for the management UI description length limit, and fixes required validation for boolean custom fields (checkbox/toggle) by switching from required to accepted while preserving required UI indicators.

Changes:

• Introduce custom-fields.fields.description_max_length config (default 255) and apply it to field/section description inputs.
• Fix required boolean validation by using Laravel’s accepted rule (and avoiding the ineffective required rule for false).
• Add feature tests covering required checkbox/toggle behavior.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
config/custom-fields.php	Adds fields.description_max_length config key.
src/Filament/Management/Schemas/FieldForm.php	Uses config-driven max length for field description textarea.
src/Filament/Management/Schemas/SectionForm.php	Uses config-driven max length for section description textarea.
src/Filament/Integration/Base/AbstractFormComponent.php	Uses markAsRequired() for required boolean fields instead of required().
src/Services/ValidationService.php	Adds accepted rule for required boolean fields.
tests/Feature/Integration/ValidationCapabilitiesTest.php	Adds tests for required boolean validation.