fix(mastra-gateway): proxy Studio asset routes

apps/mastra-gateway/src/app/access-requested/page.tsx

@@ -16,9 +16,11 @@ export default function AccessRequestedPage({
         <p className="eyebrow">Mastra Gateway</p>
         <h1>Access Requested</h1>
         <AccessReason searchParams={searchParams} />
-        <a className="button-link" href="/api/auth/login">
-          Try again
-        </a>
+        <form action="/api/auth/login">
+          <button className="button-link" type="submit">
+            Try again
+          </button>
+        </form>
       </section>
     </main>
   )

apps/mastra-gateway/src/app/admin/page.tsx

@@ -21,7 +21,9 @@ export default async function AdminPage() {
         </div>
         <nav className="top-actions" aria-label="Gateway navigation">
           <Link href="/studio">Studio</Link>
-          <a href="/api/auth/logout">Sign out</a>
+          <form action="/api/auth/logout">
+            <button type="submit">Sign out</button>
+          </form>
         </nav>
       </header>
 

apps/mastra-gateway/src/app/api/[[...path]]/route.ts

@@ -0,0 +1,30 @@
+import { proxyMastraRequest } from "@/lib/mastra-proxy"
+
+type RouteContext = {
+  params: Promise<{ path?: string[] }>
+}
+
+export async function GET(request: Request, context: RouteContext) {
+  return proxyMastraApiPath(request, context)
+}
+
+export async function POST(request: Request, context: RouteContext) {
+  return proxyMastraApiPath(request, context)
+}
+
+export async function PUT(request: Request, context: RouteContext) {
+  return proxyMastraApiPath(request, context)
+}
+
+export async function PATCH(request: Request, context: RouteContext) {
+  return proxyMastraApiPath(request, context)
+}
+
+export async function DELETE(request: Request, context: RouteContext) {
+  return proxyMastraApiPath(request, context)
+}
+
+async function proxyMastraApiPath(request: Request, context: RouteContext) {
+  const { path = [] } = await context.params
+  return proxyMastraRequest(request, `/api/${path.join("/")}`)
+}

apps/mastra/src/mastra/index.ts

@@ -16,6 +16,7 @@ const serviceKeys = parseServiceApiKeys(env.MASTRA_SERVICE_API_KEYS)
 export const mastra = new Mastra({
   agents: { smokeAgent },
   server: {
+    studioBase: "/studio",
     apiRoutes: [
       registerApiRoute("/forge-smoke", {
         method: "POST",