feat(admission): add scheduled group access

apps/web/src/app/admin/(console)/settings/page.tsx

@@ -17,6 +17,7 @@ export default async function SettingsPage({
     registrationMessage: settings?.registrationMessage ?? DEFAULT_ADMISSION_MESSAGES.registrationMessage,
     groupAccessDeniedMessage: settings?.groupAccessDeniedMessage ?? DEFAULT_ADMISSION_MESSAGES.groupAccessDeniedMessage,
     vpnDeniedMessage: settings?.vpnDeniedMessage ?? DEFAULT_ADMISSION_MESSAGES.vpnDeniedMessage,
+    scheduledAccessDeniedMessage: settings?.scheduledAccessDeniedMessage ?? DEFAULT_ADMISSION_MESSAGES.scheduledAccessDeniedMessage,
   };
   const guildId = process.env.DISCORD_GUILD_ID?.trim();
   const inviteUrl = process.env.DISCORD_INVITE_URL?.trim();
@@ -40,9 +41,10 @@ export default async function SettingsPage({
 
           <fieldset className="space-y-7">
             <legend className="font-display text-2xl font-black uppercase">Minecraft denial messages</legend>
-            <p className="text-sm leading-6 text-muted">Each plain-text message is returned for one admission outcome. Messages must be between 10 and 500 characters.</p>
-            <AdmissionMessageField description="Shown when the Minecraft identity is not registered." label="Registration required" name="registrationMessage" value={messages.registrationMessage} />
+            <p className="text-sm leading-6 text-muted">Each plain-text template is returned for one admission outcome. Messages must be between 10 and 500 characters. Registration, group, and network templates support <code>{"{player}"}</code> and <code>{"{group}"}</code>.</p>
+            <AdmissionMessageField description="Shown when the Minecraft identity is not registered. The unresolved group is everyone." label="Registration required" name="registrationMessage" value={messages.registrationMessage} />
             <AdmissionMessageField description="Shown when the effective group has Minecraft access disabled." label="Group access disabled" name="groupAccessDeniedMessage" value={messages.groupAccessDeniedMessage} />
+            <AdmissionMessageField description="Shown outside a scheduled access window. Also supports {next_start} and {next_end}; generated times explicitly use UTC." label="Scheduled access denied" name="scheduledAccessDeniedMessage" value={messages.scheduledAccessDeniedMessage} />
             <AdmissionMessageField description="Shown for VPN, proxy, or Tor connections when the effective group has no exception." label="VPN, proxy, or Tor denied" name="vpnDeniedMessage" value={messages.vpnDeniedMessage} />
           </fieldset>
           <button className="mt-8 border border-ink bg-ink px-6 py-3 font-mono text-xs font-bold uppercase tracking-[0.16em] text-canvas hover:bg-accent" type="submit">Save configuration</button>
@@ -60,7 +62,7 @@ function AdmissionMessageField({
 }: {
   description: string;
   label: string;
-  name: "registrationMessage" | "groupAccessDeniedMessage" | "vpnDeniedMessage";
+  name: "registrationMessage" | "groupAccessDeniedMessage" | "scheduledAccessDeniedMessage" | "vpnDeniedMessage";
   value: string;
 }) {
   const descriptionId = `${name}-description`;