feat: enable stricter typescript compiler options

packages/logger/environment.d.ts

@@ -0,0 +1,24 @@
+declare global {
+  namespace NodeJS {
+    interface ProcessEnv {
+      /**
+       * If set to true, invalid smtp configs will not throw an error
+       */
+      ALLOW_NO_TRANSPORT?: 'true' | string;
+      SMTP_AUTH_USER?: string;
+      SMTP_AUTH_PASSWORD?: string;
+      SMTP_SENDER_MAIL?: string;
+      SMTP_SENDER_NAME?: string;
+      SMTP_HOST?: string;
+      SMTP_PORT?: string;
+      SMTP_CC?: string;
+      SMTP_RECIPIENTS?: string;
+      SMTP_SECURE?: 'true' | string;
+      STAPPS_LOG_LEVEL?: string;
+      STAPPS_EXIT_LEVEL?: string;
+      NODE_ENV?: string;
+    }
+  }
+}
+
+export {};