feat: let every EE instance set the announcement banner (#11238)

* feat: let every EE instance set the announcement banner, not only cloud

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* feat: move the announcement banner setting to the bottom of the general tab

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>

frontend/src/lib/components/InstanceBanner.svelte

@@ -10,10 +10,10 @@
 	} from './instanceBanner'
 	import { instanceSettingsSaved } from './instanceSettings'
 
-	// Mounted only on the managed cloud (see the render site in the logged layout), so the
-	// poll costs nothing anywhere else. An announcement is only worth broadcasting while it
-	// is current, hence polling rather than waiting for the next full page load: a session
-	// left open all day is exactly the one that needs to hear about the maintenance window.
+	// Mounted only on EE (see the render site in the logged layout), so the poll costs
+	// nothing on CE. An announcement is only worth broadcasting while it is current, hence
+	// polling rather than waiting for the next full page load: a session left open all day
+	// is exactly the one that needs to hear about the maintenance window.
 	const POLL_MS = 60_000
 
 	let banner = $state<ResolvedInstanceBanner | undefined>(undefined)

frontend/src/lib/components/InstanceSetting.svelte

@@ -871,7 +871,7 @@
 				{:else if setting.fieldType == 'ws_connectivity'}
 					<WsConnectivityTest {values} />
 				{:else if setting.fieldType == 'instance_banner'}
-					<InstanceBannerSetting {values} disabled={loading} />
+					<InstanceBannerSetting {values} disabled={loading || !$enterpriseLicense} />
 				{/if}
 				{#if hasError}
 					<span class="text-red-600 dark:text-red-400 text-xs">

frontend/src/lib/components/instanceSettings.ts

@@ -240,19 +240,6 @@ export const settings: Record<string, Setting[]> = {
 			placeholder: 'only for EE',
 			storage: 'setting'
 		},
-		{
-			label: 'Announcement banner',
-			description:
-				'Message shown above every page of the instance, for maintenance windows and incidents.',
-			key: 'instance_banner',
-			fieldType: 'instance_banner',
-			storage: 'setting',
-			// The banner only renders on the managed cloud, so only offer it there.
-			cloudonly: true,
-			hideInQuickSetup: true,
-			// Gates Save. The card renders the specific message itself, so no `error` here.
-			isValid: (value: any) => instanceBannerFormError(value) == undefined
-		},
 		{
 			label: 'Non-prod instance',
 			description:
@@ -334,6 +321,19 @@ export const settings: Record<string, Setting[]> = {
 			fieldType: 'boolean',
 			storage: 'setting',
 			hideInQuickSetup: true
+		},
+		{
+			label: 'Announcement banner',
+			description:
+				'Message shown above every page of the instance, for maintenance windows and incidents.',
+			key: 'instance_banner',
+			fieldType: 'instance_banner',
+			storage: 'setting',
+			// The banner only renders on EE, so the card is disabled without a license.
+			ee_only: '',
+			hideInQuickSetup: true,
+			// Gates Save. The card renders the specific message itself, so no `error` here.
+			isValid: (value: any) => instanceBannerFormError(value) == undefined
 		}
 	],
 	Jobs: [

frontend/src/routes/(root)/(logged)/+layout.svelte

@@ -1414,11 +1414,11 @@
 			</div>
 		{/if}
 		<div class="flex flex-col h-full w-full">
-			{#if isCloudHosted() && !menuHidden}
-				<!-- Announcements are a managed-cloud operations tool, so the component never
-				     mounts elsewhere: no fetch, no poll, no listener on a self-hosted instance.
-				     Also skipped when the menu is hidden — that is an embed or an OAuth
-				     callback, where the announcement would land inside someone else's page. -->
+			{#if $enterpriseLicense && !menuHidden}
+				<!-- Announcements are an EE feature, so the component never mounts on CE: no
+				     fetch, no poll, no listener there. Also skipped when the menu is hidden —
+				     that is an embed or an OAuth callback, where the announcement would land
+				     inside someone else's page. -->
 				<InstanceBanner />
 			{/if}
 			{#if $userStore?.is_service_account}