fix(admin): replicate reference advanced-filter settings page 1:1

- Rewrite post_list/filter schema (PHP + JS) with the reference theme's
  field set, order, defaults and dependencies; topics fields excluded
  (no topics taxonomy), AKSRT private filter_* toggles dropped
- Support dynamic checkbox options in AksField (options as formData key)
  so cat_custom_filter.custom_filters lists the custom_filter dimensions
- Map PostDisplay filter settings to the new keys without legacy fallback;
  cat_custom_filter now carries lists/dropdown fieldsets and array filters
- Wire the archive chain to reference semantics: cat_custom_filter
  overrides per-category filter projects, custom_filter_show gates the
  default display, dimension chip groups render on category/tag archives
- Filter archive queries (main query + AJAX endpoint) by _aksrt_cf_{key}
  meta with exact-quoted LIKE matching
- Add advanced-filter settings reference contract test

assets/admin/src/components/form/AksFormRenderer.vue

@@ -73,6 +73,7 @@
                           v-if="isFieldVisible(sub)"
                           :schema="sub"
                           :model-value="getFieldValue(sub.key)"
+                          :form-data="formData"
                           :error-message="errors?.[sub.key]"
                           @update:model-value="setFieldValue(sub.key, $event)"
                           @action="emit('field-action', $event)"
@@ -89,6 +90,7 @@
                   <AksField
                     :schema="field"
                     :model-value="getFieldValue(field.key)"
+                    :form-data="formData"
                     :error-message="errors?.[field.key]"
                     @update:model-value="setFieldValue(field.key, $event)"
                   @action="emit('field-action', $event)"
@@ -98,6 +100,7 @@
                   v-else
                   :schema="field"
                   :model-value="getFieldValue(field.key)"
+                  :form-data="formData"
                   :error-message="errors?.[field.key]"
                   @update:model-value="setFieldValue(field.key, $event)"
                   @action="emit('field-action', $event)"