Add environment.d.ts

Author: rygine

environment.d.ts

@@ -0,0 +1,10 @@
+declare global {
+  namespace NodeJS {
+    interface ProcessEnv {
+      WALLET_KEY: `0x${string}` | undefined;
+      ENCRYPTION_KEY: string | undefined;
+    }
+  }
+}
+
+export {};