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.

apps/webui/src/lib/env.ts

@@ -3,28 +3,20 @@ import { z } from 'zod';
 
 config();
 
+const emptyToUndefined = (value: unknown) =>
+  value === '' || value === undefined || value === null ? undefined : value;
+
 const EnvSchema = z.object({
   NODE_ENV: z.enum(['development', 'test', 'production']).default('development'),
   DATABASE_URL: z.string().url(),
   REDIS_URL: z.string().url(),
   BOT_CLIENT_ID: z.string().min(1),
   BOT_CLIENT_SECRET: z.string().min(1),
-  /**
-   * Discord bot token. The WebUI does not run a discord.js Client/gateway
-   * connection, but uses this token for narrow, on-demand Discord REST calls
-   * (e.g. building a guild backup snapshot) and to enqueue BullMQ jobs that
-   * the bot process picks up for actions that require a live Client
-   * (posting messages, restoring a backup).
-   */
   BOT_TOKEN: z.string().min(1),
   WEBUI_URL: z.string().url().default('http://localhost:3000'),
   SESSION_SECRET: z.string().min(32, 'SESSION_SECRET must be at least 32 characters long'),
-  SENTRY_DSN: z.string().optional(),
+  SENTRY_DSN: z.preprocess(emptyToUndefined, z.string().optional()),
   DEFAULT_LOCALE: z.enum(['de', 'en']).default('de'),
-  /**
-   * Comma-separated Discord user IDs that are treated as global bot owners
-   * for the (future) owner panel. Optional for now.
-   */
   OWNER_USER_IDS: z.preprocess(
     (value) => (typeof value === 'string' && value.trim() === '' ? undefined : value),
     z
@@ -38,8 +30,21 @@ const EnvSchema = z.object({
               .filter((id) => id.length > 0)
           : []
       )
-  )
+  ),
+  SUPPORT_SERVER_URL: z.preprocess(emptyToUndefined, z.string().url().optional()),
+  LEGAL_OPERATOR_NAME: z.preprocess(emptyToUndefined, z.string().min(1).optional()),
+  LEGAL_OPERATOR_ADDRESS: z.preprocess(emptyToUndefined, z.string().min(1).optional()),
+  LEGAL_OPERATOR_EMAIL: z.preprocess(emptyToUndefined, z.string().email().optional()),
+  LEGAL_OPERATOR_PHONE: z.preprocess(emptyToUndefined, z.string().min(1).optional())
 });
 
 export const env = EnvSchema.parse(process.env);
 export type Env = typeof env;
+
+export function buildBotInviteUrl(clientId = env.BOT_CLIENT_ID): string {
+  const url = new URL('https://discord.com/api/oauth2/authorize');
+  url.searchParams.set('client_id', clientId);
+  url.searchParams.set('permissions', '8');
+  url.searchParams.set('scope', 'bot applications.commands');
+  return url.toString();
+}