feat(wizard): autocomplete barrios desde geo_paraguay_full.json [4F]

- BarrioAutocompleteField: carga JSON estático, filtra por depto/ciudad (2.1/2.2), mín 2 chars, máx 10 sugerencias, texto libre permitido, teclado (↑↓ Enter Escape), ARIA listbox
- QuestionRenderer: branch code === '2.3' → BarrioAutocompleteField; prop answers? pasado desde WizardForm para contexto depto/ciudad
- globals.css: clases .barrio-autocomplete-* (wrapper, list, item, item--active)
- Incluye public/data/geo_paraguay_full.json (202 KB, sin commitear hasta ahora)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

components/question-renderer.tsx

@@ -1,15 +1,17 @@
 'use client'
-import type { AnswerValue, Question, QuestionOption } from '@/lib/form-engine.types'
+import type { AnswerValue, FormAnswers, Question, QuestionOption } from '@/lib/form-engine.types'
 import { RadioGroup } from './widgets/radio-group'
 import { CheckboxGroup } from './widgets/checkbox-group'
 import { TextAreaField } from './widgets/text-area-field'
 import { TextShortField } from './widgets/text-short-field'
+import { BarrioAutocompleteField } from './widgets/barrio-autocomplete-field'
 
 interface QuestionRendererProps {
   question: Question
   value: AnswerValue
   onChange: (value: AnswerValue) => void
   error?: string
+  answers?: FormAnswers
 }
 
 const YES_NO_OPTIONS: QuestionOption[] = [
@@ -17,7 +19,7 @@ const YES_NO_OPTIONS: QuestionOption[] = [
   { value: 'false', label: 'No' },
 ]
 
-export function QuestionRenderer({ question, value, onChange, error }: QuestionRendererProps) {
+export function QuestionRenderer({ question, value, onChange, error, answers }: QuestionRendererProps) {
   const { code, type, prompt, required, max_select, options } = question
   const legend = (
     <>
@@ -70,6 +72,20 @@ export function QuestionRenderer({ question, value, onChange, error }: QuestionR
   }
 
   if (type === 'text_short') {
+    if (code === '2.3') {
+      return (
+        <BarrioAutocompleteField
+          name={code}
+          label={legend}
+          value={(value as string) ?? ''}
+          required={required}
+          departamento={(answers?.['2.1:default'] as string) ?? null}
+          ciudad={(answers?.['2.2:default'] as string) ?? null}
+          onChange={onChange}
+          error={error}
+        />
+      )
+    }
     return (
       <TextShortField
         name={code}