feat: indice estilo lanzador sam.norteamericano.cl, sidebar solo en IT + rewrite it.sam

src/app/page.tsx

@@ -1,9 +1,7 @@
 "use client";
 
 import Link from "next/link";
-import SamShell from "@/components/SamShell";
-import TableroView from "@/components/TableroView";
-import { useModules, refreshModules, useSiteSection } from "@/lib/store";
+import { useModules, refreshModules } from "@/lib/store";
 import {
   displayName,
   envOf,
@@ -14,35 +12,14 @@ import {
   sectionOf,
   SECTIONS,
   type ModuleState,
+  type RefApp,
 } from "@/lib/sam";
 
-const sectionMenu = [
-  ...SECTIONS.map((s) => ({ label: s.title, icon: s.icon, href: `/#${s.id}` })),
-  { label: "Tablero IT", icon: "bx-pie-chart-alt-2", href: "/tablero" },
-];
-
 export default function Home() {
   const { data, error } = useModules();
-  const site = useSiteSection();
   const loading = data === null && error === null;
   const fetchModules = refreshModules;
 
-  // it.sam.devops... aterriza directo en el tablero
-  if (site === "it") {
-    return (
-      <SamShell
-        brand="IT"
-        subtitle="Tablero de gestión"
-        menu={sectionMenu}
-        activeHref="/tablero"
-        topUser="SAM"
-        backHref="/"
-      >
-        <TableroView />
-      </SamShell>
-    );
-  }
-
   const modules = data?.modules ?? [];
   const backend = data?.backend;
 
@@ -107,13 +84,7 @@ export default function Home() {
     );
   };
 
-  const renderRefCard = (app: {
-    name: string;
-    title: string;
-    icon: string;
-    bg: string;
-    url: string;
-  }) => (
+  const renderRefCard = (app: RefApp) => (
     <div className="col-md-6" key={`ref-${app.name}`}>
       <div className="app-card p-2">
         <table className="table table-borderless mb-0 align-middle">
@@ -150,12 +121,41 @@ export default function Home() {
   );
 
   return (
-    <SamShell
-      brand="SAM"
-      subtitle="Sistema de Administración de Matrículas"
-      menu={sectionMenu}
-      topUser="SAM"
+    <>
+      <div className="sidenav">
+        <div className="row text-light login-main-text">
+          <div className="col-12 text-center">
+            <div
+              className="mx-auto d-flex align-items-center justify-content-center bg-white rounded-3 overflow-hidden"
+              style={{ width: 80, height: 80 }}
             >
+              <img src="/logo-sam.png" alt="SAM" style={{ width: 64, height: 64, objectFit: "contain" }} />
+            </div>
+          </div>
+          <div className="col-12 text-center mt-3">
+            <h1 className="fw-bold fs-2">Sistema SAM</h1>
+          </div>
+          <div className="col-12 text-center">
+            <h4 className="fw-semibold opacity-75">Aplicaciones</h4>
+          </div>
+          <div className="col-12 text-center mt-4 d-flex flex-column gap-2 align-items-center">
+            <Link href="/tablero" className="btn btn-light btn-sm px-4">
+              <i className="bx bx-pie-chart-alt-2 me-1" /> Tablero IT
+            </Link>
+            <Link href="/upload" className="btn btn-outline-light btn-sm px-4">
+              <i className="bx bx-plus me-1" /> Nuevo Módulo
+            </Link>
+          </div>
+          <div className="col-12 text-center mt-3">
+            <small className="opacity-50">Portal de integración</small>
+          </div>
+        </div>
+      </div>
+
+      <div className="main">
+        <div className="row" id="modulos">
+          <div className="col-lg-1" />
+          <div className="col-lg-10 mt-4">
             {loading && (
               <div className="text-center py-5">
                 <div className="spinner-border text-primary" role="status" />
@@ -293,6 +293,9 @@ export default function Home() {
                 </div>
               </div>
             )}
-    </SamShell>
+          </div>
+        </div>
+      </div>
+    </>
   );
 }

src/app/tablero/page.tsx

@@ -2,17 +2,31 @@
 
 import SamShell from "@/components/SamShell";
 import TableroView from "@/components/TableroView";
+import { useModules } from "@/lib/store";
+import { displayName, getModuleMeta } from "@/lib/sam";
+
+// App IT: sidebar con todas sus opciones (resumen, aplicaciones,
+// tableros por módulo y gestión). Se sirve en /tablero y en
+// it.sam.devops.norteamericano.cl
+export default function Tablero() {
+  const { data } = useModules();
+  const modules = data?.modules ?? [];
 
   const menu = [
     { label: "Resumen", icon: "bx-grid-alt", href: "#resumen" },
     { label: "Aplicaciones", icon: "bx-layer", href: "/" },
+    ...modules.map((m) => ({
+      label: displayName(m.name),
+      icon: getModuleMeta(m.name).icon,
+      href: `/m/${m.name}`,
+    })),
+    { label: "Nuevo Módulo", icon: "bx-plus", href: "/upload" },
   ];
 
-export default function Tablero() {
   return (
     <SamShell
       brand="IT"
-      subtitle="Tablero de gestión"
+      subtitle="Gestión de aplicaciones"
       menu={menu}
       activeHref="#resumen"
       topUser="SAM"

src/middleware.ts

@@ -0,0 +1,17 @@
+import { NextResponse } from "next/server";
+import type { NextRequest } from "next/server";
+
+// it.sam.devops... muestra el tablero IT manteniendo la URL.
+export function middleware(req: NextRequest) {
+  const host = (req.headers.get("host") || "").toLowerCase();
+  if (host.startsWith("it.sam.") && req.nextUrl.pathname === "/") {
+    const url = req.nextUrl.clone();
+    url.pathname = "/tablero";
+    return NextResponse.rewrite(url);
+  }
+  return NextResponse.next();
+}
+
+export const config = {
+  matcher: ["/"],
+};