feat: standardize command error handling (Sprint 4)

- Create withCommandErrorHandling utility in bot/lib/commandUtils.ts
- Migrate economy commands: daily, exam, pay, trivia
- Migrate inventory command: use
- Migrate admin/moderation commands: warn, case, cases, clearwarning,
  warnings, note, notes, create_color, listing, webhook, refresh,
  terminal, featureflags, settings, prune
- Add 9 unit tests for the utility
- Update AGENTS.md with new recommended error handling pattern

bot/commands/admin/refresh.ts

@@ -1,7 +1,8 @@
 import { createCommand } from "@shared/lib/utils";
 import { AuroraClient } from "@/lib/BotClient";
-import { SlashCommandBuilder, PermissionFlagsBits, MessageFlags } from "discord.js";
-import { createErrorEmbed, createSuccessEmbed } from "@lib/embeds";
+import { SlashCommandBuilder, PermissionFlagsBits } from "discord.js";
+import { createSuccessEmbed } from "@lib/embeds";
+import { withCommandErrorHandling } from "@lib/commandUtils";
 
 export const refresh = createCommand({
     data: new SlashCommandBuilder()
@@ -9,25 +10,24 @@ export const refresh = createCommand({
         .setDescription("Reloads all commands and config without restarting")
         .setDefaultMemberPermissions(PermissionFlagsBits.Administrator),
     execute: async (interaction) => {
-        await interaction.deferReply({ flags: MessageFlags.Ephemeral });
+        await withCommandErrorHandling(
+            interaction,
+            async () => {
+                const start = Date.now();
+                await AuroraClient.loadCommands(true);
+                const duration = Date.now() - start;
 
-        try {
-            const start = Date.now();
-            await AuroraClient.loadCommands(true);
-            const duration = Date.now() - start;
+                // Deploy commands
+                await AuroraClient.deployCommands();
 
-            // Deploy commands
-            await AuroraClient.deployCommands();
+                const embed = createSuccessEmbed(
+                    `Successfully reloaded ${AuroraClient.commands.size} commands in ${duration}ms.`,
+                    "System Refreshed"
+                );
 
-            const embed = createSuccessEmbed(
-                `Successfully reloaded ${AuroraClient.commands.size} commands in ${duration}ms.`,
-                "System Refreshed"
-            );
-
-            await interaction.editReply({ embeds: [embed] });
-        } catch (error) {
-            console.error(error);
-            await interaction.editReply({ embeds: [createErrorEmbed("An error occurred while refreshing commands. Check console for details.", "Refresh Failed")] });
-        }
+                await interaction.editReply({ embeds: [embed] });
+            },
+            { ephemeral: true }
+        );
     }
 });