feat: ecosistema FRASA — apps Cotizador, Alta Clientes, Cobranza y Landing

- Cotizador (/quote): 4 propuestas con formulas validadas del Excel, comparador,
  combobox de unidades, vigencia, PDF ANEXO A
- Alta Clientes (/client): wizard 8 pasos, validacion CURP RENAPO, OCR de INE,
  checklist de expediente, firma digital, 5 PDFs legales
- Cobranza (/pay): planes de enganche, mora, vista cobranza del dia, recibos PDF,
  bitacora, dashboard con filtros
- Landing (/): entrada al ecosistema
- Design system StudioBlank (monocromo, acento #1B4332) en las 4 apps
- 123 tests vitest

apps/cobranza/src/main.tsx

@@ -0,0 +1,29 @@
+import { StrictMode } from 'react'
+import { createRoot } from 'react-dom/client'
+import { BrowserRouter, Route, Routes } from 'react-router-dom'
+import '@fontsource/inter/300.css'
+import '@fontsource/inter/400.css'
+import '@fontsource/inter/500.css'
+import '@fontsource/inter/700.css'
+import './index.css'
+import Layout from './components/Layout'
+import DashboardPage from './pages/DashboardPage'
+import HoyPage from './pages/HoyPage'
+import PlanDetallePage from './pages/PlanDetallePage'
+import NuevoPlanPage from './pages/NuevoPlanPage'
+
+createRoot(document.getElementById('root')!).render(
+  <StrictMode>
+    <BrowserRouter basename="/pay">
+      <Layout>
+        <Routes>
+          <Route path="/" element={<DashboardPage />} />
+          <Route path="/hoy" element={<HoyPage />} />
+          <Route path="/planes/:id" element={<PlanDetallePage />} />
+          <Route path="/nuevo" element={<NuevoPlanPage />} />
+          <Route path="*" element={<DashboardPage />} />
+        </Routes>
+      </Layout>
+    </BrowserRouter>
+  </StrictMode>,
+)