Initial 1.3.x rework

src/validation/moduleConfig/mqtt.ts

@@ -0,0 +1,20 @@
+import { IsBoolean, Length } from "class-validator";
+
+import type { Protobuf } from "@meshtastic/meshtasticjs";
+
+export class MQTTValidation implements Protobuf.ModuleConfig_MQTTConfig {
+  @IsBoolean()
+  disabled: boolean;
+
+  @Length(0, 30)
+  address: string;
+
+  @Length(0, 30)
+  username: string;
+
+  @Length(0, 30)
+  password: string;
+
+  @IsBoolean()
+  encryptionEnabled: boolean;
+}