feat: wire computeBudget into recalcularPresupuesto and show desglose

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

mvp/b2c/src/app/panel/actions.ts

@@ -3,8 +3,11 @@
 import { and, eq } from 'drizzle-orm';
 import { revalidatePath } from 'next/cache';
 import { db } from '@/db';
-import { leads, leadEstadoHistory, precisionHistory, tenants } from '@/db/schema';
+import { leads, leadEstadoHistory, leadPipelineEventos, precisionHistory, tenants } from '@/db/schema';
 import { TENANT_SLUG } from '@/lib/funnel';
+import { getPricingConfig, getCatalog } from '@/db/pricing-queries';
+import { computeBudget } from '@/budget';
+import type { BudgetInputs } from '@/budget/types';
 
 async function getTenantId(): Promise<string> {
   const [tenant] = await db.select().from(tenants).where(eq(tenants.slug, TENANT_SLUG)).limit(1);
@@ -60,3 +63,45 @@ export async function marcarGanado(leadId: string, precioFinalEuros: number) {
   revalidatePath('/panel');
   revalidatePath(`/panel/${leadId}`);
 }
+
+export async function recalcularPresupuesto(leadId: string) {
+  const tenantId = await getTenantId();
+  const [lead] = await db
+    .select()
+    .from(leads)
+    .where(and(eq(leads.id, leadId), eq(leads.tenantId, tenantId)))
+    .limit(1);
+  if (!lead) throw new Error('Lead no encontrado.');
+
+  const [config, catalog] = await Promise.all([getPricingConfig(), getCatalog()]);
+
+  const inputs: BudgetInputs = {
+    tipoReforma: lead.tipoReforma ?? 'otro',
+    m2Suelo: lead.m2Suelo ?? null,
+    alturaTecho: lead.alturaTecho ?? null,
+    calidadGlobal: lead.calidadGlobal ?? 'media',
+    estructural: lead.estructural,
+    provincia: lead.provincia ?? null,
+    materialSelections: (lead.materialSelections as Record<string, string>) ?? {},
+  };
+
+  const result = computeBudget(inputs, config, catalog);
+
+  await db
+    .update(leads)
+    .set({
+      presupuestoEstimado: result.total,
+      desgloseSnapshot: { stage: lead.pipelineStage, result },
+      updatedAt: new Date(),
+    })
+    .where(eq(leads.id, leadId));
+
+  await db.insert(leadPipelineEventos).values({
+    leadId,
+    stage: 'presupuesto_generado',
+    metadata: { total: result.total, confianza: result.confianza },
+  });
+
+  revalidatePath('/panel');
+  revalidatePath(`/panel/${leadId}`);
+}