feat(dashboard): painel Rafael — meta, comissão, inativos, pedidos recentes (C7)

GET /dashboard/rep retorna meta mensal, comissão (fixa + FLEX), clientes
inativos >30 dias e pedidos dos últimos 7 dias. RepTarget model com migration.
RafaelPainel conectado à API real via useRepDashboard().

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

apps/api/prisma/migrations/20260528002822_c7_rep_target/migration.sql

@@ -0,0 +1,15 @@
+-- CreateTable
+CREATE TABLE "RepTarget" (
+    "repId" TEXT NOT NULL,
+    "year" INTEGER NOT NULL,
+    "month" INTEGER NOT NULL,
+    "targetAmount" DECIMAL(15,2) NOT NULL,
+    "commissionRate" DECIMAL(5,2) NOT NULL DEFAULT 3,
+    "flexRate" DECIMAL(5,2) NOT NULL DEFAULT 1,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "RepTarget_pkey" PRIMARY KEY ("repId","year","month")
+);
+
+-- CreateIndex
+CREATE INDEX "RepTarget_repId_idx" ON "RepTarget"("repId");