CATEGORIES MIGRATED to steps[] schema:
- hob: Источник нагрева → Подтип (multi, optionsBy) → Размер → Конфорки → Особенности
- oven: Установка → Функции (multi) → Размер → Где ставим (cond:built_in) → Особенности
- dw: Тип встройки → Класс (multi) → Ширина → Корзины → Особенности
- hood: Форм-фактор → Подключение → Ширина → Цвет (cond:visible-types) → Особенности
- microwave: Установка → Функции (multi) → Размер (optionsBy) → Особенности
- coffee: Тип → Молоко (cond:grinder/manual) → Вода (cond:built-in/tap) → Размер (cond:built-in) → Особенности
- washer: Установка → Функция → Глубина → Загрузка → Объём → Особенности
NEW PODBOR.JS FEATURES:
- isStepActive(step, answers) — predicate for condition field
- findNextActiveIdx / findPrevActiveIdx — skip inactive steps in navigation
- Auto-advance through inactive on single-select pick
- Review screen filters inactive steps
- isCategoryFilled checks only active single-steps
- buildPerCatSummary skips inactive
- Clearing dependent answers when condition's parent changes (in addition to optionsBy)
NEXT: pictograms for step 1 of each category (currently text-pin layout)
- Visible on all steps after categories are selected
- Highlights current category when inside its wizard
- Filled categories show checkmark
- Tap chip jumps directly to that category's wizard
- Horizontal scroll if many categories don't fit
- New PODBOR_PARAMS schema with steps[] supporting single/multi + optionsBy branches
- 11 fridge SVG pictograms in podbor.picts.js (style D — 3D perspective with shadow)
- renderCategoryWizard with step-by-step flow, chips for prior answers, review screen
- Legacy renderCategoryDetail still used for other 7 categories until migrated
- Auto-advance on single-select, Дальше button for multi-select
- Backend-compatible: per_cat[catKey].answers replaces .params/.features
