feat(decorators): add initGroupSetting decorator for group settings initialization

- Implemented `initGroupSetting` decorator to initialize group settings
- Ensures that group settings are fetched or initialized before method execution
- Uses `GroupSettingsService` to manage group settings based on the chat ID

Author: bitsgenix

src/decorators/db/index.ts

@@ -0,0 +1,24 @@
+import { Context } from "grammy";
+import { GroupSettingsService } from "../../service/db/group";
+export function initGroupSetting() {
+  return function (
+    target: any,
+    propertyKey: string,
+    descriptor: PropertyDescriptor
+  ) {
+    const originalMethod = descriptor.value;
+
+    descriptor.value = async function (...args: any[]) {
+      const ctx: Context = (this as any)?.ctx || args[0];
+      const groupSettingsRepo = new GroupSettingsService();
+      const groupSettings = await groupSettingsRepo.getByGroupId(ctx.chat?.id!);
+      if (!groupSettings) {
+        await groupSettingsRepo.init(ctx);
+      }
+
+      return originalMethod.apply(this, args);
+    };
+
+    return descriptor;
+  };
+}