feat(bots/discord)!: read commit description

FEATURES:
- Updated documentation
- Improved configuration format
- Allow filter overriding for each response config (closes #29)
- Improved commands directory structure
- Improved slash command reload script
- New commands
- New command exception handling

bots/discord/src/classes/CommandError.ts

@@ -0,0 +1,31 @@
+import { createErrorEmbed } from '$/utils/discord/embeds'
+
+export default class CommandError extends Error {
+    type: CommandErrorType
+
+    constructor(type: CommandErrorType, message?: string) {
+        super(message)
+        this.name = 'CommandError'
+        this.type = type
+    }
+
+    toEmbed() {
+        return createErrorEmbed(ErrorTitleMap[this.type], this.message ?? '')
+    }
+}
+
+export enum CommandErrorType {
+    Generic,
+    MissingArgument,
+    InvalidUser,
+    InvalidChannel,
+    InvalidDuration,
+}
+
+const ErrorTitleMap: Record<CommandErrorType, string> = {
+    [CommandErrorType.Generic]: 'An exception was thrown',
+    [CommandErrorType.MissingArgument]: 'Missing argument',
+    [CommandErrorType.InvalidUser]: 'Invalid user',
+    [CommandErrorType.InvalidChannel]: 'Invalid channel',
+    [CommandErrorType.InvalidDuration]: 'Invalid duration',
+}