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/logs/audit/page.tsx

@@ -4,10 +4,6 @@ import { canAccess, getAdminContext, PERMS } from "@/lib/permissions";
 import { getAuditLogs } from "@/lib/services/audit";
 import { AuditTable } from "./audit-table";
 
-// 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 AuditLogsPage({
 	params: paramsPromise,
 	searchParams,

src/app/admin/logs/chat/page.tsx

@@ -1,10 +1,6 @@
 import { loadChatLogList } from "../_lib/load-ignored-logs";
 import { ChatTable } from "./chat-table";
 
-// 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 ChatLogsPage({
 	searchParams,
 }: {

src/app/admin/logs/commands/page.tsx

@@ -1,10 +1,6 @@
 import { loadCommandLogList } from "../_lib/load-ignored-logs";
 import { CommandsTable } from "./commands-table";
 
-// 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 CommandLogsPage({
 	searchParams,
 }: {

src/app/admin/logs/page.tsx

@@ -19,10 +19,6 @@ import { formatDate } from "@/lib/format-date";
 import { canAccess, getAdminContext, PERMS } from "@/lib/permissions";
 import { StaffActivitiesTable } from "./staff-activities-table";
 
-// 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;
-
 const SORT_MAP = {
 	when: StaffActivities.createdAt,
 	staff: StaffActivities.userId,

src/app/admin/logs/trades/page.tsx

@@ -1,10 +1,6 @@
 import { loadTradeLogList } from "../_lib/load-ignored-logs";
 import { TradesTable } from "./trades-table";
 
-// 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 TradeLogsPage({
 	searchParams,
 }: {