Implement command cooldown management and enhance command execution flow

- Introduced `applyCommandCooldown` function to manage per-command cooldowns after execution, improving command rate limiting.
- Updated command execution flow to include cooldown application, ensuring users are informed of cooldown status.
- Enhanced error handling in interaction replies, allowing for more graceful error management and user feedback.
- Improved the handling of interaction responses across various commands, ensuring consistent user experience.
- Added permission checks for new commands, ensuring only authorized users can execute specific actions.

apps/bot/src/commands.ts

@@ -8,7 +8,7 @@ import { t, tf, type Locale } from '@nexumi/shared';
 import { env } from './env.js';
 import { logger } from './logger.js';
 import { getGuildLocale } from './i18n.js';
-import { evaluateCommandGate, type CommandGateReason } from './command-gates.js';
+import { evaluateCommandGate, applyCommandCooldown, type CommandGateReason } from './command-gates.js';
 import {
   isGuildBlacklisted,
   isModuleEnabled,
@@ -238,6 +238,7 @@ export async function routeCommand(interaction: ChatInputCommandInteraction, con
     }
 
     await command.execute(interaction, context);
+    await applyCommandCooldown(interaction, context).catch(() => undefined);
   } catch (error) {
     ok = false;
     captureException(error, {
@@ -276,6 +277,16 @@ export async function routeContextMenu(
     return;
   }
 
+  const maintenance = await isMaintenanceMode(context);
+  const ownerIds = env.OWNER_USER_IDS ?? [];
+  if (maintenance.enabled && !ownerIds.includes(interaction.user.id)) {
+    await interaction.reply({
+      content: maintenance.message?.trim() || t(locale, 'generic.maintenance'),
+      ephemeral: true
+    });
+    return;
+  }
+
   const command = contextMenuMap.get(interaction.commandName);
   if (!command) {
     await interaction.reply({ content: t(locale, 'generic.unknownCommand'), ephemeral: true });