Enhance bot and WebUI functionality with new features and environment updates

- Added support for new environment variables in `.env.example` for public site and legal operator information.
- Integrated core commands into the bot's command structure for improved functionality.
- Implemented a new `publishBotStatus` function to update bot status in Redis, enhancing monitoring capabilities.
- Updated the landing page to include features, invite links, and support server access, improving user experience.
- Enhanced localization with new keys for core commands and landing page elements in both English and German.
- Improved error handling and logging for bot presence updates and status publishing.

packages/shared/src/public.ts

@@ -0,0 +1,28 @@
+import { z } from 'zod';
+
+export const PublicStatsSchema = z.object({
+  guildCount: z.number().int().nonnegative(),
+  approximateUserCount: z.number().int().nonnegative(),
+  updatedAt: z.string()
+});
+
+export type PublicStats = z.infer<typeof PublicStatsSchema>;
+
+export const BotStatusShardSchema = z.object({
+  id: z.number().int().nonnegative(),
+  status: z.string(),
+  guildCount: z.number().int().nonnegative(),
+  ping: z.number()
+});
+
+export const BotStatusPayloadSchema = z.object({
+  shards: z.array(BotStatusShardSchema),
+  apiLatencyMs: z.number(),
+  guildCount: z.number().int().nonnegative(),
+  uptimeSeconds: z.number(),
+  updatedAt: z.string()
+});
+
+export type BotStatusPayload = z.infer<typeof BotStatusPayloadSchema>;
+
+export const BOT_STATUS_REDIS_KEY = 'bot:status';