fix: Resolve TypeScript errors

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

client/node_modules/level-codec/lib/encodings.js

@@ -0,0 +1,66 @@
+var Buffer = require('buffer').Buffer
+
+exports.utf8 = exports['utf-8'] = {
+  encode: function (data) {
+    return isBinary(data) ? data : String(data)
+  },
+  decode: identity,
+  buffer: false,
+  type: 'utf8'
+}
+
+exports.json = {
+  encode: JSON.stringify,
+  decode: JSON.parse,
+  buffer: false,
+  type: 'json'
+}
+
+exports.binary = {
+  encode: function (data) {
+    return isBinary(data) ? data : Buffer.from(data)
+  },
+  decode: identity,
+  buffer: true,
+  type: 'binary'
+}
+
+exports.none = {
+  encode: identity,
+  decode: identity,
+  buffer: false,
+  type: 'id'
+}
+
+exports.id = exports.none
+
+var bufferEncodings = [
+  'hex',
+  'ascii',
+  'base64',
+  'ucs2',
+  'ucs-2',
+  'utf16le',
+  'utf-16le'
+]
+
+bufferEncodings.forEach(function (type) {
+  exports[type] = {
+    encode: function (data) {
+      return isBinary(data) ? data : Buffer.from(data, type)
+    },
+    decode: function (buffer) {
+      return buffer.toString(type)
+    },
+    buffer: true,
+    type: type
+  }
+})
+
+function identity (value) {
+  return value
+}
+
+function isBinary (data) {
+  return data === undefined || data === null || Buffer.isBuffer(data)
+}