## What
Real-estate detail rule block (~10 fields) was duplicated in **4
requests**; loan detail block in **2**. Variants differ only by
`sometimes` on `property_type` and presence of `revaluation_percentage`.
New `ValidatesAccountDetailRules` trait:
- `realEstateDetailRules(propertyTypeSometimes:, withRevaluation:)`
- `loanDetailRules()`
## Stats
- **-115 / +83 lines**; one source of truth for these field rules
## Checks
- `php artisan test --filter="Account|RealEstate|Loan"` — 355 passed
(1744 assertions)
- `vendor/bin/pint --dirty` — pass
Part of duplication-removal series (#475–#480).
Víctor Falcón