Fix MITM on window

src/mitm/paths.js

@@ -0,0 +1,16 @@
+const path = require("path");
+const os = require("os");
+
+// Single source of truth for data directory — matches localDb.js logic
+function getDataDir() {
+  if (process.env.DATA_DIR) return process.env.DATA_DIR;
+  if (process.platform === "win32") {
+    return path.join(process.env.APPDATA || path.join(os.homedir(), "AppData", "Roaming"), "9router");
+  }
+  return path.join(os.homedir(), ".9router");
+}
+
+const DATA_DIR = getDataDir();
+const MITM_DIR = path.join(DATA_DIR, "mitm");
+
+module.exports = { DATA_DIR, MITM_DIR };