fix: personalización logo/color por contribuyente en vez de tenant

- Agrega getCustomizationContribuyente, uploadLogoContribuyente,
  updateColorContribuyente en contribuyente-facturapi.service.ts
- Agrega controllers per-contribuyente en facturacion.controller.ts
- Agrega rutas GET/POST/PUT /contribuyentes/:id/facturapi/customization|logo|color
- Modifica CustomizationSection para recibir contribuyenteId, usar endpoints
  per-contribuyente, y corrige useState mal aplicado a useEffect
- Backend y frontend buildeados y deployados

apps/web/app/(dashboard)/configuracion/csd/page.tsx

@@ -1,6 +1,6 @@
 'use client';
 
-import { useState } from 'react';
+import { useState, useEffect } from 'react';
 import { Header } from '@/components/layouts/header';
 import { Card, CardContent, CardDescription, CardHeader, CardTitle, Button, Input, Label } from '@horux/shared-ui';
 import { useTimbres } from '@/lib/hooks/use-facturacion';
@@ -9,21 +9,24 @@ import { useQuery, useQueryClient } from '@tanstack/react-query';
 import { useContribuyenteStore } from '@/stores/contribuyente-store';
 import { Shield, Upload, Check, AlertCircle, Receipt, Palette, Image, Building2, FileText } from 'lucide-react';
 
-function CustomizationSection() {
+function CustomizationSection({ contribuyenteId }: { contribuyenteId: string }) {
   const queryClient = useQueryClient();
   const [logoUploading, setLogoUploading] = useState(false);
   const [colorSaving, setColorSaving] = useState(false);
   const [color, setColor] = useState('#75A4FF');
   const [msg, setMsg] = useState<{ type: 'success' | 'error'; text: string } | null>(null);
 
+  const queryKey = ['facturapi-customization', contribuyenteId];
+
   const { data: customization } = useQuery({
-    queryKey: ['facturapi-customization'],
-    queryFn: () => apiClient.get('/facturacion/customization').then(r => r.data),
+    queryKey,
+    queryFn: () => apiClient.get(`/contribuyentes/${contribuyenteId}/facturapi/customization`).then(r => r.data),
+    enabled: !!contribuyenteId,
   });
 
-  useState(() => {
+  useEffect(() => {
     if (customization?.color) setColor(`#${customization.color}`);
-  });
+  }, [customization?.color]);
 
   const handleLogoUpload = async (e: React.ChangeEvent<HTMLInputElement>) => {
     const file = e.target.files?.[0];
@@ -45,8 +48,8 @@ function CustomizationSection() {
     reader.onload = async () => {
       const base64 = (reader.result as string).split(',')[1];
       try {
-        await apiClient.post('/facturacion/logo', { logo: base64 });
-        queryClient.invalidateQueries({ queryKey: ['facturapi-customization'] });
+        await apiClient.post(`/contribuyentes/${contribuyenteId}/facturapi/logo`, { logo: base64 });
+        queryClient.invalidateQueries({ queryKey });
         setMsg({ type: 'success', text: 'Logo subido correctamente' });
       } catch {
         setMsg({ type: 'error', text: 'Error al subir logo' });
@@ -61,8 +64,8 @@ function CustomizationSection() {
     setColorSaving(true);
     setMsg(null);
     try {
-      await apiClient.put('/facturacion/color', { color: color.replace('#', '') });
-      queryClient.invalidateQueries({ queryKey: ['facturapi-customization'] });
+      await apiClient.put(`/contribuyentes/${contribuyenteId}/facturapi/color`, { color: color.replace('#', '') });
+      queryClient.invalidateQueries({ queryKey });
       setMsg({ type: 'success', text: 'Color actualizado' });
     } catch {
       setMsg({ type: 'error', text: 'Error al actualizar color' });
@@ -357,7 +360,7 @@ export default function CsdConfigPage() {
         )}
 
         {/* Personalización de factura */}
-        {selectedContribuyenteId && orgStatus?.configured && <CustomizationSection />}
+        {selectedContribuyenteId && orgStatus?.configured && <CustomizationSection contribuyenteId={selectedContribuyenteId} />}
 
         {/* Timbres */}
         {selectedContribuyenteId && <Card>