fix: lint

vite.config.ts

@@ -3,29 +3,37 @@ import react from "@vitejs/plugin-react";
 import path from "node:path";
 import fs from "node:fs";
 import type { ViteDevServer } from "vite";
+import type { IncomingMessage, ServerResponse } from "http";
 
 const saveMapPlugin = () => ({
   name: "save-map-api",
   configureServer(server: ViteDevServer) {
-    server.middlewares.use("/api/save-map", async (req: any, res: any) => {
-      if (req.method !== "POST") {
-        res.writeHead(405).end();
-        return;
-      }
-
-      let body = "";
-      req.on("data", (chunk: any) => (body += chunk));
-      req.on("end", () => {
-        try {
-          const mapPath = path.resolve(__dirname, "public/map.json");
-          fs.writeFileSync(mapPath, body);
-          res.writeHead(200, { "Content-Type": "application/json" });
-          res.end(JSON.stringify({ success: true }));
-        } catch (err: any) {
-          res.writeHead(500).end(JSON.stringify({ error: err.message }));
+    server.middlewares.use(
+      "/api/save-map",
+      async (req: IncomingMessage, res: ServerResponse) => {
+        if (req.method !== "POST") {
+          res.writeHead(405).end();
+          return;
         }
-      });
-    });
+
+        let body = "";
+        req.on("data", (chunk: Buffer) => (body += chunk.toString()));
+        req.on("end", () => {
+          try {
+            const mapPath = path.resolve(__dirname, "public/map.json");
+            fs.writeFileSync(mapPath, body);
+            res.writeHead(200, { "Content-Type": "application/json" });
+            res.end(JSON.stringify({ success: true }));
+          } catch (err) {
+            res.writeHead(500).end(
+              JSON.stringify({
+                error: err instanceof Error ? err.message : "Unknown error",
+              }),
+            );
+          }
+        });
+      },
+    );
   },
 });
 import { fileURLToPath } from "node:url";