refactor: migrate all code to use getGuildConfig() for guild settings

- Update all commands and events to fetch guild config once per execution
- Pass config to service methods that need it (ModerationService.issueWarning)
- Update terminal service to use guildSettingsService for persistence
- Remove direct imports of config for guild-specific settings

This consolidates configuration to database-backed guild settings,
eliminating the dual config system.

bot/modules/system/scheduler.ts

@@ -1,4 +1,5 @@
 import { temporaryRoleService } from "@shared/modules/system/temp-role.service";
+import { terminalService } from "@shared/modules/terminal/terminal.service";
 
 export const schedulerService = {
     start: () => {
@@ -10,7 +11,6 @@ export const schedulerService = {
         }, 60 * 1000);
 
         // 2. Terminal Update Loop (every 60s)
-        const { terminalService } = require("@shared/modules/terminal/terminal.service");
         setInterval(() => {
             terminalService.update();
         }, 60 * 1000);