diff --git a/backlog/features.json b/backlog/features.json
index 0fa4683..cfc34af 100644
--- a/backlog/features.json
+++ b/backlog/features.json
@@ -6692,6 +6692,23 @@
         "close": true
       },
       "completed_at": "2026-08-22T15:42:35Z"
+    },
+    {
+      "id": "F-158",
+      "type": "fix",
+      "title": "POS use same-origin API proxy on LAN",
+      "description": "Browser POS requests must use /api proxy instead of localhost:3000; proxy forwards backend cookies and terminal headers.",
+      "priority": "high",
+      "risk": "med",
+      "status": "done",
+      "created_at": "2026-08-22",
+      "gates": {
+        "reviewer": true,
+        "security": true,
+        "qa": true,
+        "close": true
+      },
+      "completed_at": "2026-08-22T15:50:54Z"
     }
   ]
 }
diff --git a/project/apps/pos/next.config.ts b/project/apps/pos/next.config.ts
index dbcda97..bcc7096 100644
--- a/project/apps/pos/next.config.ts
+++ b/project/apps/pos/next.config.ts
@@ -1,10 +1,7 @@
 import type { NextConfig } from 'next';
 
 const nextConfig: NextConfig = {
-  port: 3006,
-  env: {
-    NEXT_PUBLIC_API_URL: process.env.NEXT_PUBLIC_API_URL ?? 'http://localhost:3000',
-  },
+  allowedDevOrigins: ['192.168.18.93', 'localhost'],
 };
 
 export default nextConfig;
diff --git a/project/apps/pos/src/app/(terminal)/layout.tsx b/project/apps/pos/src/app/(terminal)/layout.tsx
index 624b81a..c0e3191 100644
--- a/project/apps/pos/src/app/(terminal)/layout.tsx
+++ b/project/apps/pos/src/app/(terminal)/layout.tsx
@@ -1,7 +1,3 @@
-import type { NextLayout } from 'next';
-
-const TerminalLayout: NextLayout = ({ children }: { children: React.ReactNode }) => {
+export default function TerminalLayout({ children }: { children: React.ReactNode }) {
   return <>{children}</>;
-};
-
-export default TerminalLayout;
+}
diff --git a/project/apps/pos/src/app/(terminal)/page.tsx b/project/apps/pos/src/app/(terminal)/page.tsx
index 7f3fa94..b1e28aa 100644
--- a/project/apps/pos/src/app/(terminal)/page.tsx
+++ b/project/apps/pos/src/app/(terminal)/page.tsx
@@ -30,26 +30,65 @@ interface Config {
   paymentMethods: { id: string; code: string; label: string; kind: string }[];
 }
 
+interface Customer {
+  id: string;
+  email: string;
+  firstName?: string;
+  lastName?: string;
+}
+
 export default function RegisterPage() {
   const [config, setConfig] = useState<Config | null>(null);
+  const [configError, setConfigError] = useState('');
+  const [needsBinding, setNeedsBinding] = useState(false);
+  const [bindingCode, setBindingCode] = useState('');
+  const [binding, setBinding] = useState(false);
   const [cart, setCart] = useState<CartItem[]>([]);
   const [search, setSearch] = useState('');
   const [searchResults, setSearchResults] = useState<SearchResult[]>([]);
   const [searching, setSearching] = useState(false);
   const [selectedItem, setSelectedItem] = useState<CartItem | null>(null);
   const [showDiscountPanel, setShowDiscountPanel] = useState(false);
-  const [customer, setCustomer] = useState<{ id: string; email: string; firstName?: string; lastName?: string } | null>(null);
+  const [customer, setCustomer] = useState<Customer | null>(null);
   const [showCustomerSearch, setShowCustomerSearch] = useState(false);
   const [customerQuery, setCustomerQuery] = useState('');
-  const [customerResults, setCustomerResults] = useState<typeof customer[]>([]);
+  const [customerResults, setCustomerResults] = useState<Customer[]>([]);
   const [processing, setProcessing] = useState(false);
   const [lastSale, setLastSale] = useState<{ orderId: string; totalCents: number } | null>(null);
   const [error, setError] = useState('');
 
-  useEffect(() => {
-    posApi.config().then(setConfig).catch(() => setConfig(null));
+  const loadConfig = useCallback(async () => {
+    setConfigError('');
+    try {
+      setConfig(await posApi.config<Config>());
+      setNeedsBinding(false);
+    } catch (err: unknown) {
+      const apiError = err as { code?: string; message?: string };
+      setConfig(null);
+      setNeedsBinding(apiError.code === 'MISSING_TERMINAL_ID');
+      setConfigError(apiError.message ?? 'No se pudo cargar la configuración del TPV');
+    }
   }, []);
 
+  useEffect(() => {
+    void loadConfig();
+  }, [loadConfig]);
+
+  const bindTerminal = async (event: React.FormEvent) => {
+    event.preventDefault();
+    setBinding(true);
+    setConfigError('');
+    try {
+      await posApi.bind(bindingCode.trim().toUpperCase());
+      setBindingCode('');
+      await loadConfig();
+    } catch (err: unknown) {
+      setConfigError(err instanceof Error ? err.message : 'No se pudo vincular el terminal');
+    } finally {
+      setBinding(false);
+    }
+  };
+
   const doSearch = useCallback(async (q: string) => {
     if (q.trim().length < 2) { setSearchResults([]); return; }
     setSearching(true);
@@ -104,7 +143,7 @@ export default function RegisterPage() {
     try {
       const res = await fetch(`/api/pos/customers/search?q=${encodeURIComponent(q)}`, { credentials: 'include' });
       if (res.ok) {
-        const data = await res.json() as { items: typeof customer[] };
+        const data = await res.json() as { items: Customer[] };
         setCustomerResults(data.items ?? []);
       }
     } catch { setCustomerResults([]); }
@@ -138,15 +177,56 @@ export default function RegisterPage() {
       setCart([]);
       setCustomer(null);
       setTimeout(() => setLastSale(null), 5000);
-    } catch (err: { message?: string }) {
-      setError((err as { message?: string }).message ?? 'Error');
+    } catch (err: unknown) {
+      setError(err instanceof Error ? err.message : 'Error');
     } finally {
       setProcessing(false);
     }
   };
 
+  if (!config && needsBinding) {
+    return (
+      <div className="flex min-h-screen items-center justify-center bg-gray-100 p-6">
+        <form onSubmit={bindTerminal} className="w-full max-w-sm space-y-4 rounded-2xl bg-white p-8 shadow-lg">
+          <div>
+            <h1 className="text-2xl font-bold text-gray-900">Vincular terminal</h1>
+            <p className="mt-1 text-sm text-gray-500">Introduce el código de 8 caracteres generado en administración.</p>
+          </div>
+          <input
+            value={bindingCode}
+            onChange={(event) => setBindingCode(event.target.value.toUpperCase())}
+            minLength={8}
+            maxLength={8}
+            autoComplete="off"
+            className="w-full rounded-xl border border-gray-300 px-4 py-3 text-center font-mono text-xl tracking-widest outline-none focus:ring-2 focus:ring-[#2D6A4F]"
+            placeholder="AB12CD34"
+            required
+            autoFocus
+          />
+          {configError && <p className="text-sm text-red-600">{configError}</p>}
+          <button
+            type="submit"
+            disabled={binding || bindingCode.trim().length !== 8}
+            className="w-full rounded-xl bg-[#2D6A4F] py-2.5 font-semibold text-white transition-colors hover:bg-[#1B4332] disabled:opacity-50"
+          >
+            {binding ? 'Vinculando…' : 'Vincular TPV'}
+          </button>
+        </form>
+      </div>
+    );
+  }
+
   if (!config) {
-    return <div className="flex items-center justify-center min-h-screen text-gray-500">Cargando TPV…</div>;
+    return (
+      <div className="flex min-h-screen flex-col items-center justify-center gap-3 text-gray-500">
+        <p>{configError || 'Cargando TPV…'}</p>
+        {configError && (
+          <button onClick={() => void loadConfig()} className="text-sm font-medium text-[#2D6A4F] hover:underline">
+            Reintentar
+          </button>
+        )}
+      </div>
+    );
   }
 
   if (config.session?.status !== 'OPEN') {
diff --git a/project/apps/pos/src/app/api/[...path]/route.ts b/project/apps/pos/src/app/api/[...path]/route.ts
index 24c0332..2c71dc0 100644
--- a/project/apps/pos/src/app/api/[...path]/route.ts
+++ b/project/apps/pos/src/app/api/[...path]/route.ts
@@ -1,32 +1,79 @@
 import { NextRequest, NextResponse } from 'next/server';
 
-const API = process.env.NEXT_PUBLIC_API_URL ?? 'http://localhost:3000';
+const BACKEND_URL = process.env.POS_BACKEND_URL ?? 'http://127.0.0.1:3000';
+
+function apiPath(request: NextRequest): string {
+  return request.nextUrl.pathname.replace(/^\/api\//, '');
+}
+
+function backendUrl(request: NextRequest): string {
+  return `${BACKEND_URL}/${apiPath(request)}${request.nextUrl.search}`;
+}
+
+function requestHeaders(request: NextRequest, hasBody = false): Headers {
+  const headers = new Headers();
+  const cookie = request.headers.get('cookie');
+  const terminalId = request.headers.get('x-terminal-id') ?? request.cookies.get('pos_terminal_id')?.value;
+
+  if (cookie) headers.set('cookie', cookie);
+  if (terminalId) headers.set('x-terminal-id', terminalId);
+  if (hasBody) headers.set('content-type', request.headers.get('content-type') ?? 'application/json');
+
+  return headers;
+}
+
+function proxyResponse(backendResponse: Response): NextResponse {
+  const response = new NextResponse(backendResponse.body, {
+    status: backendResponse.status,
+    statusText: backendResponse.statusText,
+  });
+
+  const contentType = backendResponse.headers.get('content-type');
+  const setCookie = backendResponse.headers.get('set-cookie');
+  if (contentType) response.headers.set('content-type', contentType);
+  if (setCookie) response.headers.set('set-cookie', setCookie);
+
+  return response;
+}
 
 export async function GET(request: NextRequest) {
-  const path = request.nextUrl.pathname.replace('/api/', '');
-  const search = request.nextUrl.search;
-  const cookie = request.headers.get('cookie') ?? '';
-  const terminalId = request.headers.get('x-terminal-id');
-
-  const headers: Record<string, string> = { Cookie: cookie };
-  if (terminalId) headers['x-terminal-id'] = terminalId;
-
-  const res = await fetch(`${API}/${path}${search}`, { headers, credentials: 'include' });
-  const body = await res.text();
-  return new NextResponse(body, { status: res.status, headers: { 'content-type': res.headers.get('content-type') ?? 'application/json' } });
+  try {
+    const response = await fetch(backendUrl(request), {
+      headers: requestHeaders(request),
+      cache: 'no-store',
+    });
+    return proxyResponse(response);
+  } catch {
+    return NextResponse.json({ message: 'Backend no disponible' }, { status: 502 });
+  }
 }
 
 export async function POST(request: NextRequest) {
-  const path = request.nextUrl.pathname.replace('/api/', '');
-  const search = request.nextUrl.search;
-  const cookie = request.headers.get('cookie') ?? '';
-  const terminalId = request.headers.get('x-terminal-id');
-  const body = await request.text();
+  try {
+    const body = await request.text();
+    const response = await fetch(backendUrl(request), {
+      method: 'POST',
+      headers: requestHeaders(request, true),
+      body,
+      cache: 'no-store',
+    });
+    const bindingPayload = response.ok && apiPath(request) === 'pos/terminals/bind'
+      ? await response.clone().json() as { terminalId?: string }
+      : null;
+    const proxied = proxyResponse(response);
 
-  const headers: Record<string, string> = { 'Content-Type': 'application/json', Cookie: cookie };
-  if (terminalId) headers['x-terminal-id'] = terminalId;
+    if (bindingPayload?.terminalId) {
+      proxied.cookies.set('pos_terminal_id', bindingPayload.terminalId, {
+        httpOnly: true,
+        sameSite: 'lax',
+        secure: process.env.NODE_ENV === 'production',
+        maxAge: 365 * 24 * 60 * 60,
+        path: '/',
+      });
+    }
 
-  const res = await fetch(`${API}/${path}${search}`, { method: 'POST', headers, body, credentials: 'include' });
-  const resBody = await res.text();
-  return new NextResponse(resBody, { status: res.status, headers: { 'content-type': res.headers.get('content-type') ?? 'application/json' } });
+    return proxied;
+  } catch {
+    return NextResponse.json({ message: 'Backend no disponible' }, { status: 502 });
+  }
 }
diff --git a/project/apps/pos/src/lib/api-client.ts b/project/apps/pos/src/lib/api-client.ts
index 8d46f29..faaa3e0 100644
--- a/project/apps/pos/src/lib/api-client.ts
+++ b/project/apps/pos/src/lib/api-client.ts
@@ -1,4 +1,6 @@
-const API = process.env.NEXT_PUBLIC_API_URL ?? 'http://localhost:3000';
+// Browser requests stay on the POS origin. The Next.js route handler proxies
+// `/api/*` to the backend, so LAN clients never resolve their own localhost.
+const API = '/api';
 
 async function apiFetch<T>(path: string, init?: RequestInit): Promise<T> {
   const res = await fetch(`${API}${path}`, {
@@ -10,8 +12,14 @@ async function apiFetch<T>(path: string, init?: RequestInit): Promise<T> {
     },
   });
   if (!res.ok) {
-    const err = await res.json().catch(() => ({ message: res.statusText }));
-    throw Object.assign(new Error((err as { message?: string }).message ?? 'Request failed'), { status: res.status });
+    const err = await res.json().catch(() => ({ message: res.statusText })) as {
+      message?: string;
+      error?: { message?: string; code?: string };
+    };
+    throw Object.assign(
+      new Error(err.error?.message ?? err.message ?? 'Request failed'),
+      { status: res.status, code: err.error?.code },
+    );
   }
   return res.json() as Promise<T>;
 }
@@ -21,9 +29,12 @@ export const posApi = {
   me: () => apiFetch('/pos/terminals/me'),
   /** Bind terminal with code. */
   bind: (bindingCode: string) =>
-    apiFetch('/pos/terminals/bind', { method: 'POST', body: JSON.stringify({ bindingCode }) }),
+    apiFetch<{ terminalId: string; storeId: string }>('/pos/terminals/bind', {
+      method: 'POST',
+      body: JSON.stringify({ bindingCode }),
+    }),
   /** Get POS config (store + terminal + payment methods + session status). */
-  config: () => apiFetch('/pos/config'),
+  config: <T>() => apiFetch<T>('/pos/config'),
   /** List products by query. */
   searchProducts: (q: string, storeId?: string, limit = 20) =>
     apiFetch(`/pos/products/search?q=${encodeURIComponent(q)}&storeId=${storeId ?? ''}&limit=${limit}`),
diff --git a/project/apps/pos/src/middleware.ts b/project/apps/pos/src/middleware.ts
index 4cf8dfe..f076a16 100644
--- a/project/apps/pos/src/middleware.ts
+++ b/project/apps/pos/src/middleware.ts
@@ -11,9 +11,13 @@ export function middleware(request: NextRequest) {
     return NextResponse.next();
   }
 
-  // Check for backoffice session cookie
+  // The identity backend issues the mdv_session cookie. Keep legacy names
+  // accepted during migration, but do not redirect valid current sessions.
   const cookie = request.headers.get('cookie') ?? '';
-  const hasSession = cookie.includes('backoffice_session') || cookie.includes('session_token');
+  const hasSession =
+    cookie.includes('mdv_session=') ||
+    cookie.includes('backoffice_session=') ||
+    cookie.includes('session_token=');
 
   if (!hasSession) {
     return NextResponse.redirect(new URL('/login', request.url));
diff --git a/work/artifacts/F-158/architect.md b/work/artifacts/F-158/architect.md
new file mode 100644
index 0000000..255ecdf
--- /dev/null
+++ b/work/artifacts/F-158/architect.md
@@ -0,0 +1,20 @@
+# F-158 — Diseño
+
+## Decisión
+Separar explícitamente URL pública y URL privada:
+
+- Navegador POS: siempre usa `/api` del mismo origen (`:3006`).
+- Route handler Next.js: usa `POS_BACKEND_URL`, server-only, con fallback `http://127.0.0.1:3000`.
+- No exponer ni incrustar `NEXT_PUBLIC_API_URL` en el bundle.
+
+## Proxy
+- Construye destino desde el catch-all path y query string.
+- Reenvía Cookie, Content-Type y `x-terminal-id`.
+- Propaga status, Content-Type y todos los `Set-Cookie` del backend.
+- GET y POST cubren las operaciones actuales del cliente POS.
+
+## Desarrollo LAN
+`allowedDevOrigins` incluye `192.168.18.93` y `localhost` para recursos Next/HMR.
+
+## Seguridad
+La URL backend queda server-only. Los paths proceden del segmento catch-all y se concatenan contra una base fija, sin aceptar host suministrado por el cliente.
diff --git a/work/artifacts/F-158/documenter.md b/work/artifacts/F-158/documenter.md
new file mode 100644
index 0000000..9e747fd
--- /dev/null
+++ b/work/artifacts/F-158/documenter.md
@@ -0,0 +1,14 @@
+# F-158 — Documentación
+
+## Acceso LAN
+El TPV se abre en `http://192.168.18.93:3006`. Todas las llamadas del navegador permanecen en ese origen mediante `/api`; solo el servidor Next accede al backend en `127.0.0.1:3000`.
+
+## Primera vinculación
+Después del login, un dispositivo sin terminal muestra la pantalla **Vincular terminal**. Debe introducir el código de 8 caracteres. La vinculación se guarda en una cookie HttpOnly durante un año.
+
+## Entorno local actual
+- Terminal: `TPV Principal`
+- Código de vinculación: `B794401C`
+- Backend: puerto 3000
+- Admin: puerto 3004
+- POS: puerto 3006
diff --git a/work/artifacts/F-158/implementer.md b/work/artifacts/F-158/implementer.md
new file mode 100644
index 0000000..290e9f2
--- /dev/null
+++ b/work/artifacts/F-158/implementer.md
@@ -0,0 +1,24 @@
+# F-158 — Implementer
+
+## Implementación
+- El cliente POS usa exclusivamente `/api`, nunca `localhost:3000` desde el navegador.
+- El proxy Next usa `POS_BACKEND_URL` server-only con fallback `127.0.0.1:3000`.
+- El proxy reenvía sesión, terminal y Content-Type; propaga `Set-Cookie` del login.
+- La vinculación guarda `pos_terminal_id` como cookie HttpOnly durante un año y el proxy la traduce a `x-terminal-id`.
+- Middleware reconoce la cookie real `mdv_session` además de nombres legacy.
+- Añadida pantalla de vinculación inicial de 8 caracteres y estados de error/reintento.
+- Corregidos errores TypeScript previos del esqueleto POS (`NextLayout`, tipos de config/customer/catch).
+- `allowedDevOrigins` permite `192.168.18.93` y `localhost`.
+
+## Evidencia
+- `cd project/apps/pos && npm run build`: PASS, 4 rutas + middleware.
+- `cd project/apps/pos && npx tsc --noEmit`: PASS.
+- `cd project && node_modules/.bin/tsc --noEmit`: PASS.
+- Login proxy: HTTP 200 + cookie `mdv_session`.
+- Bind proxy: HTTP 200 + cookie `pos_terminal_id`.
+- Config proxy autenticado/vinculado: HTTP 200 con store, terminal y métodos de pago.
+- Servicios persistentes: 3000, 3004 y 3006 escuchando.
+- `./scripts/verify.sh`: PASS.
+
+## Configuración local
+Se creó `TPV Principal` para la tienda por defecto. Código de vinculación: `B794401C`.
diff --git a/work/artifacts/F-158/leader-close.json b/work/artifacts/F-158/leader-close.json
new file mode 100644
index 0000000..f6a3e3c
--- /dev/null
+++ b/work/artifacts/F-158/leader-close.json
@@ -0,0 +1,16 @@
+{
+  "feature_id": "F-158",
+  "agent": "leader",
+  "stage": "close",
+  "verdict": "APPROVED",
+  "summary": "POS LAN usa proxy same-origin y completa login, vinculación y config sin localhost del navegador.",
+  "checks": [
+    { "item": "Reviewer approved", "ok": true },
+    { "item": "Security approved", "ok": true },
+    { "item": "QA approved", "ok": true },
+    { "item": "POS build passed", "ok": true },
+    { "item": "Runtime acceptance passed", "ok": true },
+    { "item": "verify.sh passed", "ok": true }
+  ],
+  "issues": []
+}
diff --git a/work/artifacts/F-158/qa.json b/work/artifacts/F-158/qa.json
new file mode 100644
index 0000000..25db81a
--- /dev/null
+++ b/work/artifacts/F-158/qa.json
@@ -0,0 +1,16 @@
+{
+  "feature_id": "F-158",
+  "agent": "qa",
+  "stage": "qa_gate",
+  "verdict": "APPROVED",
+  "summary": "Flujo LAN completo validado contra 192.168.18.93:3006.",
+  "checks": [
+    { "item": "Login through POS proxy", "ok": true, "evidence": "HTTP 200 and mdv_session cookie" },
+    { "item": "Terminal bind through POS proxy", "ok": true, "evidence": "HTTP 200 and pos_terminal_id cookie" },
+    { "item": "POS config through proxy", "ok": true, "evidence": "HTTP 200 with store, terminal and payment methods" },
+    { "item": "No direct browser backend request", "ok": true, "evidence": "api-client uses /api" },
+    { "item": "Build and types", "ok": true, "evidence": "POS build and both TypeScript checks passed" },
+    { "item": "Runtime services", "ok": true, "evidence": "Ports 3000, 3004 and 3006 listening" }
+  ],
+  "issues": []
+}
diff --git a/work/artifacts/F-158/reviewer.json b/work/artifacts/F-158/reviewer.json
new file mode 100644
index 0000000..644c475
--- /dev/null
+++ b/work/artifacts/F-158/reviewer.json
@@ -0,0 +1,15 @@
+{
+  "feature_id": "F-158",
+  "agent": "reviewer",
+  "stage": "review_gate",
+  "verdict": "APPROVED",
+  "summary": "El POS elimina la dependencia de localhost en navegador y completa login, vinculación y config por proxy same-origin.",
+  "checks": [
+    { "item": "No browser localhost URL", "ok": true, "evidence": "api-client base is /api; source search has no NEXT_PUBLIC_API_URL" },
+    { "item": "Proxy contract", "ok": true, "evidence": "Cookies, terminal header, status and content type forwarded" },
+    { "item": "Terminal persistence", "ok": true, "evidence": "HttpOnly pos_terminal_id cookie translated to x-terminal-id" },
+    { "item": "POS production build", "ok": true, "evidence": "Next.js 15 build passed" },
+    { "item": "Runtime flow", "ok": true, "evidence": "login 200, bind 200, config 200 through :3006" }
+  ],
+  "issues": []
+}
diff --git a/work/artifacts/F-158/security.json b/work/artifacts/F-158/security.json
new file mode 100644
index 0000000..ca86091
--- /dev/null
+++ b/work/artifacts/F-158/security.json
@@ -0,0 +1,14 @@
+{
+  "feature_id": "F-158",
+  "agent": "security",
+  "stage": "security_gate",
+  "verdict": "APPROVED",
+  "summary": "La URL backend queda server-only y las cookies de sesión/terminal se mantienen HttpOnly y same-origin.",
+  "checks": [
+    { "item": "Backend URL not public", "ok": true, "evidence": "POS_BACKEND_URL is only read in server route handler" },
+    { "item": "Terminal cookie protection", "ok": true, "evidence": "HttpOnly, SameSite=Lax, Secure in production" },
+    { "item": "Fixed upstream host", "ok": true, "evidence": "Client controls path only; upstream base comes from trusted env" },
+    { "item": "No broad header forwarding", "ok": true, "evidence": "Only cookie, content-type and x-terminal-id forwarded" }
+  ],
+  "issues": []
+}
diff --git a/work/current.md b/work/current.md
index ae1e3c0..fdfe754 100644
--- a/work/current.md
+++ b/work/current.md
@@ -1,17 +1,17 @@
-# Feature activa: F-157 — Reporting sections live on Reporting page
+# Feature activa: F-158 — POS use same-origin API proxy on LAN
 
 ## Problema
-El menú principal muestra Dashboard, Ventas y Productos de Reporting como entradas indentadas. El operador requiere una única entrada principal **Reporting**. Al abrirla, sus apartados deben aparecer dentro del área de Reporting, igual que las pestañas internas de Ajustes.
+El TPV abierto en `http://192.168.18.93:3006` ejecuta peticiones del navegador contra `http://localhost:3000`. En un cliente LAN, `localhost` apunta al propio cliente y produce `ERR_CONNECTION_REFUSED`.
 
 ## Alcance
-- El sidebar principal muestra solo `Reporting`.
-- `/reporting` abre por defecto el apartado Dashboard.
-- Dashboard, Ventas y Productos se muestran como navegación local dentro de Reporting.
-- La navegación local permanece visible en las páginas de los tres apartados.
-- No se cambian APIs ni permisos de Reporting.
+- El cliente POS usa rutas same-origin `/api/...`.
+- El route handler de Next.js reenvía las peticiones al backend privado (`127.0.0.1:3000`).
+- El proxy conserva cookies de sesión y `x-terminal-id`.
+- El login propaga `Set-Cookie` al navegador.
+- Next dev permite el origen LAN `192.168.18.93`.
 
 ## Aceptación
-1. No aparecen `/reporting/dashboard`, `/reporting/sales` ni `/reporting/products` en el menú principal.
-2. Al pulsar Reporting aparece una lista local con Dashboard, Ventas y Productos.
-3. El apartado activo queda visualmente marcado.
-4. El build del admin y `verify.sh` pasan.
+1. El navegador no solicita directamente `localhost:3000`.
+2. `GET /api/pos/config` llega al backend mediante el proxy.
+3. Login conserva la cookie de sesión.
+4. POS build, TypeScript y `verify.sh` pasan.
diff --git a/work/runtime-status.json b/work/runtime-status.json
index 424d810..74058d0 100644
--- a/work/runtime-status.json
+++ b/work/runtime-status.json
@@ -1,68 +1,68 @@
 {
-  "feature_id": "F-157",
+  "feature_id": "F-158",
   "stage": "close",
   "agent": "leader",
-  "action": "Close F-157 after approved gates",
+  "action": "Close F-158 after LAN acceptance",
   "state": "running",
   "next_agent": "leader",
   "waiting_for": "Seleccionar una feature pending y actualizar este estado",
-  "updated_at": "2026-08-22T15:42:24Z",
+  "updated_at": "2026-08-22T15:50:42Z",
   "timeline": [
     {
-      "ts": "2026-08-22T15:38:27Z",
+      "ts": "2026-08-22T15:42:54Z",
       "agent": "leader",
       "stage": "intake",
       "state": "running",
-      "message": "Define Reporting navigation as page-local sections"
+      "message": "Define LAN-safe POS API flow"
     },
     {
-      "ts": "2026-08-22T15:39:01Z",
+      "ts": "2026-08-22T15:43:10Z",
       "agent": "architect",
       "stage": "design",
       "state": "running",
-      "message": "Design page-local Reporting navigation"
+      "message": "Design same-origin POS proxy and cookie forwarding"
     },
     {
-      "ts": "2026-08-22T15:39:21Z",
+      "ts": "2026-08-22T15:43:38Z",
       "agent": "implementer",
       "stage": "build",
       "state": "running",
-      "message": "Move Reporting sections from sidebar into Reporting layout"
+      "message": "Implement LAN-safe POS API proxy"
     },
     {
-      "ts": "2026-08-22T15:41:38Z",
+      "ts": "2026-08-22T15:49:47Z",
       "agent": "reviewer",
       "stage": "review_gate",
       "state": "running",
-      "message": "Review Reporting navigation and build evidence"
+      "message": "Review POS same-origin proxy and binding flow"
     },
     {
-      "ts": "2026-08-22T15:41:52Z",
+      "ts": "2026-08-22T15:49:59Z",
       "agent": "security",
       "stage": "security_gate",
       "state": "running",
-      "message": "Check navigation RBAC and client URL safety"
+      "message": "Audit POS proxy cookies, headers and backend URL"
     },
     {
-      "ts": "2026-08-22T15:42:06Z",
+      "ts": "2026-08-22T15:50:19Z",
       "agent": "qa",
       "stage": "qa_gate",
       "state": "running",
-      "message": "Validate Reporting sidebar and local section acceptance"
+      "message": "Run POS LAN login-bind-config acceptance"
     },
     {
-      "ts": "2026-08-22T15:42:15Z",
+      "ts": "2026-08-22T15:50:31Z",
       "agent": "documenter",
       "stage": "document",
       "state": "running",
-      "message": "Document Reporting navigation behavior"
+      "message": "Document POS LAN and terminal binding behavior"
     },
     {
-      "ts": "2026-08-22T15:42:24Z",
+      "ts": "2026-08-22T15:50:42Z",
       "agent": "leader",
       "stage": "close",
       "state": "running",
-      "message": "Close F-157 after approved gates"
+      "message": "Close F-158 after LAN acceptance"
     }
   ]
 }