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.

docs/verification.md

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+# Discord Bot Verification – Privileged Intents
+
+This document lists why Nexumi requires privileged Gateway intents for Discord's verification application.
+Update it when modules gain or lose intent dependencies.
+
+## Server Members Intent (`GuildMembers`)
+
+Required so the bot can receive and act on member join/leave/update events and resolve member lists beyond the cache.
+
+| Module | Why |
+|--------|-----|
+| Welcome & Abschied | Join/leave messages, autoroles, member-count placeholders |
+| Verification | Assign verified/unverified roles on join and after button/captcha success |
+| Logging | Member join/leave, nickname and role changes |
+| Auto-Moderation (Anti-Raid) | Join-rate detection and lockdown reactions |
+| Leveling | Voice XP and member-bound XP state |
+| Temp-Voice | Owner transfer / claim when members move |
+| Stats / Invite-Tracking | Member counts and invite attribution on join |
+| Birthdays | Resolve birthday role recipients |
+| Tickets / Self-Roles | Permission overwrites and role grants for members |
+
+Without this intent, welcome, verification, raid protection, and accurate member logging cannot function.
+
+## Message Content Intent (`MessageContent`)
+
+Required to read message text for filters, XP, custom triggers, and moderation tools.
+
+| Module | Why |
+|--------|-----|
+| Auto-Moderation | Spam, mentions, caps, invites, links, word/regex filters, duplicates, emoji spam, zalgo, phishing lists |
+| Leveling | Text XP from message content (with cooldowns) |
+| Tags | Trigger-word custom commands |
+| Logging | Edited/deleted message content in log embeds |
+| Utility (`/snipe`, `/editsnipe`) | Restore last deleted/edited message content when enabled |
+| Moderation (`/purge` filters) | Filter by links/regex against message body |
+
+Slash command **options** do not need this intent; only messages sent by users in guild channels do.
+
+## Intents that are not privileged (for reference)
+
+Nexumi also uses non-privileged intents such as `Guilds`, `GuildMessages`, `GuildMessageReactions`, `GuildModeration`, `GuildVoiceStates`, `GuildEmojisAndStickers`, and `GuildInvites`. Those do not require special verification approval but are listed here for completeness of the gateway configuration in `apps/bot/src/index.ts`.