Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In
`@app/Http/Controllers/Apis/Protected/Summit/Factories/SummitSponsorshipAddOnsValidationRulesFactory.php`:
- Around line 27-29: The validation rules for type_id and type fields in
SummitSponsorshipAddOnsValidationRulesFactory allow both fields to be submitted
simultaneously, creating ambiguous type resolution. To enforce mutual
exclusivity, add a `prohibits` validation rule (or equivalent mutual exclusion
constraint) at lines 27-29 so that type_id prohibits the presence of type, and
at lines 36-37 so that type prohibits the presence of type_id. This ensures only
one field can be provided per request, eliminating conflicting values and
non-deterministic behavior.

In
`@app/Http/Controllers/Apis/Protected/Summit/Factories/SummitSponsorshipAddOnTypeValidationRulesFactory.php`:
- Around line 30-34: The validation rule for the 'name' field in the
buildForUpdate method of SummitSponsorshipAddOnTypeValidationRulesFactory
currently permits empty strings because it only validates that the field is a
string when present. Add the 'filled' validation rule to the 'name' field
validation chain to ensure that when the name is provided, it must not be empty,
preventing blank lookup names from being persisted during updates.

In `@app/ModelSerializers/Summit/SummitSponsorshipAddOnTypeSerializer.php`:
- Around line 27-32: The serialize method in
SummitSponsorshipAddOnTypeSerializer is mutating the canonical name field by
replacing underscores with spaces on line 31, which prevents round-tripping of
the original stored value and breaks idempotent update/filter operations.
Instead of modifying the name value directly, create a separate display field
(such as name_display or similar) to hold the transformed version with spaces,
leaving the canonical name field unchanged so it reflects the actual stored
value in the database.

In `@app/Repositories/Summit/DoctrineSummitSponsorshipAddOnRepository.php`:
- Around line 85-88: The getMetadata() method in
DoctrineSummitSponsorshipAddOnRepository currently returns an empty array but
should return populated metadata following the pattern used in similar
repositories. Examine how DoctrineSummitRegistrationPromoCodeRepository and
DoctrineSummitLocationRepository implement their getMetadata() methods—they call
Model::getMetadata() on their related entity types to populate the array. Apply
the same approach to the getMetadata() method in
DoctrineSummitSponsorshipAddOnRepository by calling getMetadata() on
SummitSponsorshipAddOn and/or SummitSponsorshipAddOnType entity classes and
returning the resulting metadata array instead of an empty array.

In `@app/Services/Model/ISummitSponsorshipAddOnTypeService.php`:
- Around line 41-45: The PHPDoc comment for the delete method in the
ISummitSponsorshipAddOnTypeService interface only documents that it throws
EntityNotFoundException, but the implementation also throws ValidationException
when the type is in use. Add a `@throws` ValidationException line to the PHPDoc
comment block of the delete method to fully document all exceptions that callers
need to handle.

In `@app/Services/ModelServicesProvider.php`:
- Around line 351-354: Since ModelServicesProvider is a deferred provider with
`$defer = true`, you must declare all service bindings registered in the
`register()` method within the `provides()` method as well. Add
`ISummitSponsorshipAddOnTypeService::class` to the `provides()` method array in
ModelServicesProvider so that Laravel can properly resolve this binding at
runtime without failures.

In `@tests/oauth2/OAuth2SummitSponsorshipAddOnTypesApiControllerTest.php`:
- Around line 41-57: The tearDown method only removes self::$default_type but
does not clean up add-on types created by testAdd(), causing test data leaks.
Add a class-level collection variable (such as self::$created_types) to track
all SummitSponsorshipAddOnType instances created during test execution. In
testAdd() and any other test methods that create add-on types, append the newly
created type to this tracking collection after persistence. Then in tearDown(),
iterate through all tracked add-on types in the collection and remove each one
from the entity manager before clearing the collection, ensuring complete
cleanup of all test-created data alongside the existing self::$default_type
cleanup.

---

Nitpick comments:
In `@database/migrations/model/Version20260615000001.php`:
- Around line 55-61: The INSERT statement for SummitSponsorshipAddOnType in the
addSql call will fail if the migration is re-executed due to the unique
constraint on the Name column. Make the INSERT idempotent by adding either
INSERT IGNORE or an ON DUPLICATE KEY UPDATE clause to the SQL statement so that
re-running the migration after a partial failure does not cause the statement to
fail, allowing the migration to proceed safely.

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Duplicate comments:
In
`@app/Http/Controllers/Apis/Protected/Summit/Factories/SummitSponsorshipAddOnTypeValidationRulesFactory.php`:
- Around line 30-34: The validation rule for the name field in the
buildForUpdate method of SummitSponsorshipAddOnTypeValidationRulesFactory is
missing a check to reject empty string values. The current rule
sometimes|string|max:255 allows blank names to pass validation. Add the filled
validation rule to ensure that when the name field is present in the payload, it
cannot be an empty string. Update the rule to include filled alongside the
existing validators.