Add global command channel rules and enhance command handling

- Introduced global command channel whitelist and blacklist in the GuildSettings model for improved command access control.
- Implemented command gate logic in the command routing to handle channel and role restrictions, providing user feedback for denied commands.
- Enhanced the CommandsManager component to support global rules and channel/role selection, improving the user interface for managing command permissions.
- Updated localization files to include new keys for global command rules and related messages, ensuring clarity in user interactions.

apps/bot/prisma/schema.prisma

@@ -64,6 +64,10 @@ model GuildSettings {
   moderationEnabled Boolean  @default(true)
   /// Snipe/editsnipe storage and commands (SPEC: default off for privacy).
   snipeEnabled      Boolean  @default(false)
+  /// Global command channel whitelist (empty = all channels unless denied).
+  commandAllowedChannelIds String[] @default([])
+  /// Global command channel blacklist.
+  commandDeniedChannelIds  String[] @default([])
   guild             Guild    @relation(fields: [guildId], references: [id], onDelete: Cascade)
 }