Update README and moderation commands for localization and migration support

- Revised README to include database migration steps and a new section for database management.
- Enhanced moderation command responses to utilize localized messages for unknown commands.
- Refactored moderation commands to use centralized command data definitions, improving maintainability and consistency.
- Added localization support for command descriptions and options in both German and English.
- Versioned Prisma migrations for better tracking of database changes.

packages/shared/src/discord-localization.ts

@@ -0,0 +1,48 @@
+import { commandLocales, type CommandLocaleKey } from './command-locales.js';
+
+export function commandLocale(key: CommandLocaleKey): {
+  description: string;
+  descriptionLocalizations: Record<string, string>;
+} {
+  const entry = commandLocales[key];
+  return {
+    description: entry.en,
+    descriptionLocalizations: {
+      de: entry.de,
+      'en-US': entry.en
+    }
+  };
+}
+
+export function localizedChoice(key: CommandLocaleKey, value: string) {
+  const entry = commandLocales[key];
+  return {
+    name: entry.en,
+    name_localizations: {
+      de: entry.de,
+      'en-US': entry.en
+    },
+    value
+  };
+}
+
+export function applyCommandDescription<
+  T extends {
+    setDescription: (description: string) => T;
+    setDescriptionLocalizations: (localizations: Record<string, string>) => T;
+  }
+>(builder: T, key: CommandLocaleKey): T {
+  const locale = commandLocale(key);
+  return builder
+    .setDescription(locale.description)
+    .setDescriptionLocalizations(locale.descriptionLocalizations);
+}
+
+export function applyOptionDescription<
+  T extends {
+    setDescription: (description: string) => T;
+    setDescriptionLocalizations: (localizations: Record<string, string>) => T;
+  }
+>(option: T, key: CommandLocaleKey): T {
+  return applyCommandDescription(option, key);
+}