perf: migrate pages to Cache Components via root layout opt-out

Remove the per-route 'export const instant = false' opt-outs now that the root layout carries the single Cache Components opt-out. Child pages inherit the opt-out, so admin/mod/radio leaf pages that only access cached or DB data stay instant while runtime-dependent pages remain dynamic. Update the staff-smoke contract test to assert the root-layout contract.

src/app/admin/radio/api-keys/page.tsx

@@ -10,10 +10,6 @@ import { Button } from "@/components/ui/button";
 import { db, RadioApiKeys } from "@/lib/db";
 import { formatDate } from "@/lib/format-date";
 
-// TODO: Cache Components adoption. Refactor this route so this opt-out can be removed.
-// See: https://nextjs.org/docs/app/guides/migrating-to-cache-components
-export const instant = false;
-
 export const metadata = { title: "Radio API Keys" };
 
 type ApiKey = {

src/app/admin/radio/autodj/page.tsx

@@ -11,10 +11,6 @@ import { Button } from "@/components/ui/button";
 import { db, RadioAutoDjPlaylist } from "@/lib/db";
 import { formatDate } from "@/lib/format-date";
 
-// TODO: Cache Components adoption. Refactor this route so this opt-out can be removed.
-// See: https://nextjs.org/docs/app/guides/migrating-to-cache-components
-export const instant = false;
-
 export const metadata = { title: "Radio AutoDJ" };
 
 type Track = {

src/app/admin/radio/banners/page.tsx

@@ -11,10 +11,6 @@ import { Button } from "@/components/ui/button";
 import { db, RadioBanners } from "@/lib/db";
 import { formatDate } from "@/lib/format-date";
 
-// TODO: Cache Components adoption. Refactor this route so this opt-out can be removed.
-// See: https://nextjs.org/docs/app/guides/migrating-to-cache-components
-export const instant = false;
-
 type Banner = {
 	id: bigint;
 	userId: bigint;

src/app/admin/radio/embed/page.tsx

@@ -6,10 +6,6 @@ import { resolveHotelName } from "@/lib/hotel-name";
 import { siteSettings } from "@/lib/services/site-settings";
 import { EmbedSnippet } from "./embed-snippet";
 
-// TODO: Cache Components adoption. Refactor this route so this opt-out can be removed.
-// See: https://nextjs.org/docs/app/guides/migrating-to-cache-components
-export const instant = false;
-
 export const metadata = { title: "Radio Embed" };
 
 export default async function AdminRadioEmbedPage() {

src/app/admin/radio/history/page.tsx

@@ -4,10 +4,6 @@ import { StatusCard } from "@/components/admin/dashboard";
 import { db, RadioHistory, User } from "@/lib/db";
 import { formatDate } from "@/lib/format-date";
 
-// TODO: Cache Components adoption. Refactor this route so this opt-out can be removed.
-// See: https://nextjs.org/docs/app/guides/migrating-to-cache-components
-export const instant = false;
-
 type History = {
 	id: bigint;
 	userId: bigint;

src/app/admin/radio/layout.tsx

@@ -1,10 +1,6 @@
 import { redirect } from "next/navigation";
 import { canAccess, getAdminContext, PERMS } from "@/lib/permissions";
 
-// TODO: Cache Components adoption. Refactor this route so this opt-out can be removed.
-// See: https://nextjs.org/docs/app/guides/migrating-to-cache-components
-export const instant = false;
-
 export default async function RadioAdminLayout({
 	children,
 }: {

src/app/admin/radio/moderation/page.tsx

@@ -6,10 +6,6 @@ import { Button } from "@/components/ui/button";
 import { db, RadioShouts } from "@/lib/db";
 import { formatDate } from "@/lib/format-date";
 
-// TODO: Cache Components adoption. Refactor this route so this opt-out can be removed.
-// See: https://nextjs.org/docs/app/guides/migrating-to-cache-components
-export const instant = false;
-
 type Shout = {
 	id: bigint;
 	userId: bigint;

src/app/admin/radio/monitoring/page.tsx

@@ -2,10 +2,6 @@ import { getTranslations } from "next-intl/server";
 import { DiagnosticRow, StatusCard } from "@/components/admin/dashboard";
 import { siteSettings } from "@/lib/services/site-settings";
 
-// TODO: Cache Components adoption. Refactor this route so this opt-out can be removed.
-// See: https://nextjs.org/docs/app/guides/migrating-to-cache-components
-export const instant = false;
-
 export const metadata = { title: "Radio Monitoring" };
 
 const FETCH_TIMEOUT_MS = 4000;

src/app/admin/radio/page.tsx

@@ -6,10 +6,6 @@ import { Button } from "@/components/ui/button";
 import { db, RadioApplications, RadioSchedules, RadioShouts } from "@/lib/db";
 import { formatDate } from "@/lib/format-date";
 
-// TODO: Cache Components adoption. Refactor this route so this opt-out can be removed.
-// See: https://nextjs.org/docs/app/guides/migrating-to-cache-components
-export const instant = false;
-
 type Shout = {
 	id: bigint;
 	userId: bigint;

src/app/admin/radio/points/page.tsx

@@ -4,10 +4,6 @@ import { StatusCard } from "@/components/admin/dashboard";
 import { Button } from "@/components/ui/button";
 import { siteSettings } from "@/lib/services/site-settings";
 
-// TODO: Cache Components adoption. Refactor this route so this opt-out can be removed.
-// See: https://nextjs.org/docs/app/guides/migrating-to-cache-components
-export const instant = false;
-
 export const metadata = { title: "Radio Points" };
 
 const DEFAULTS = {

src/app/admin/radio/ranks/page.tsx

@@ -9,10 +9,6 @@ import { StatusCard } from "@/components/admin/dashboard";
 import { Button } from "@/components/ui/button";
 import { db, RadioRanks } from "@/lib/db";
 
-// TODO: Cache Components adoption. Refactor this route so this opt-out can be removed.
-// See: https://nextjs.org/docs/app/guides/migrating-to-cache-components
-export const instant = false;
-
 type Rank = {
 	id: bigint;
 	name: string;

src/app/admin/radio/settings/page.tsx

@@ -7,10 +7,6 @@ import { StatusCard } from "@/components/admin/dashboard";
 import { Button } from "@/components/ui/button";
 import { db, WebsiteSetting } from "@/lib/db";
 
-// TODO: Cache Components adoption. Refactor this route so this opt-out can be removed.
-// See: https://nextjs.org/docs/app/guides/migrating-to-cache-components
-export const instant = false;
-
 type Field = { key: string; comment: string };
 type Group = { title: string; fields: Field[] };