add stable media support and sync skillhub UI

web/app/api/auth/logout/route.ts

@@ -0,0 +1,43 @@
+import { NextResponse } from "next/server";
+import { cookies } from "next/headers";
+import {
+  SESSION_COOKIE_NAME,
+  popiartFetchEnvelope,
+} from "@/lib/popiart-api";
+
+export async function POST() {
+  const cookieStore = await cookies();
+  const token = cookieStore.get(SESSION_COOKIE_NAME)?.value;
+
+  try {
+    if (token) {
+      await popiartFetchEnvelope<{ logged_out: boolean }>("/auth/logout", {
+        method: "POST",
+        headers: {
+          Authorization: `Bearer ${token}`,
+        },
+      });
+    }
+  } catch {
+    // Clear the local session even if the upstream logout call fails.
+  }
+
+  const response = NextResponse.json({
+    ok: true,
+    data: {
+      logged_out: true,
+    },
+  });
+
+  response.cookies.set({
+    name: SESSION_COOKIE_NAME,
+    value: "",
+    httpOnly: true,
+    sameSite: "lax",
+    secure: process.env.NODE_ENV === "production",
+    path: "/",
+    maxAge: 0,
+  });
+
+  return response;
+}