fix: Resolve TypeScript errors

Signed-off-by: Hermes Agent <hermes@nosuchhost>

client/node_modules/level-js/util/clear.js

@@ -0,0 +1,34 @@
+'use strict'
+
+module.exports = function clear (db, location, keyRange, options, callback) {
+  if (options.limit === 0) return db._nextTick(callback)
+
+  var transaction = db.db.transaction([location], 'readwrite')
+  var store = transaction.objectStore(location)
+  var count = 0
+
+  transaction.oncomplete = function () {
+    callback()
+  }
+
+  transaction.onabort = function () {
+    callback(transaction.error || new Error('aborted by user'))
+  }
+
+  // A key cursor is faster (skips reading values) but not supported by IE
+  var method = store.openKeyCursor ? 'openKeyCursor' : 'openCursor'
+  var direction = options.reverse ? 'prev' : 'next'
+
+  store[method](keyRange, direction).onsuccess = function (ev) {
+    var cursor = ev.target.result
+
+    if (cursor) {
+      // Wait for a request to complete before continuing, saving CPU.
+      store.delete(cursor.key).onsuccess = function () {
+        if (options.limit <= 0 || ++count < options.limit) {
+          cursor.continue()
+        }
+      }
+    }
+  }
+}