Fix import order in e2e server files

Move dotenv import to top with other external imports,
matching the pattern established in permit2-approval.ts.
Adds blank line separator between external and internal imports.

Author: nux

e2e/servers/express/index.ts

@@ -1,10 +1,11 @@
+import dotenv from "dotenv";
 import express from "express";
+
 import { paymentMiddleware } from "@x402/express";
 import { x402ResourceServer, HTTPFacilitatorClient } from "@x402/core/server";
 import { registerExactEvmScheme } from "@x402/evm/exact/server";
 import { registerExactSvmScheme } from "@x402/svm/exact/server";
 import { bazaarResourceServerExtension, declareDiscoveryExtension } from "@x402/extensions/bazaar";
-import dotenv from "dotenv";
 
 dotenv.config();
 

e2e/servers/hono/index.ts

@@ -1,11 +1,12 @@
+import dotenv from "dotenv";
 import { serve } from "@hono/node-server";
 import { Hono } from "hono";
+
 import { paymentMiddleware } from "@x402/hono";
 import { x402ResourceServer, HTTPFacilitatorClient } from "@x402/core/server";
 import { registerExactEvmScheme } from "@x402/evm/exact/server";
 import { registerExactSvmScheme } from "@x402/svm/exact/server";
 import { bazaarResourceServerExtension, declareDiscoveryExtension } from "@x402/extensions/bazaar";
-import dotenv from "dotenv";
 
 dotenv.config();