feat(new tool): HAR file sanitizer

Fix #811

src/tools/har-sanitizer/lib/hash.ts

@@ -0,0 +1,18 @@
+export type HashMap = Record<string, string[]>;
+
+export function toHashString(obj: HashMap): string {
+  const params = new URLSearchParams();
+  Object.entries(obj).forEach(([key, stringArr]) => {
+    stringArr.forEach((value) => {
+      params.append(key, value);
+    });
+  });
+  return `#${params.toString()}`;
+}
+
+export function getHashMap(hash: string): HashMap {
+  const existingParams = new URLSearchParams(hash.replace('#', ''));
+  return Object.fromEntries(
+    [...existingParams.keys()].map(key => [key, existingParams.getAll(key)]),
+  );
+}