chore: don't log buffers in trace lgos

Author: JGAntunes

docs/api.md

@@ -613,7 +613,7 @@ Human readable event representation
 | --- | --- | --- |
 | topicCID | <code>string</code> |  |
 | author | <code>string</code> | The event author base58 id |
-| payload | <code>Buffer</code> | Event payload |
+| payloadSize | <code>number</code> | Event payload size in bytes |
 | publisher | <code>string</code> | The event publisher base58 id |
 | parent | <code>string</code> | The event parent base58 id |
 | isPublished | <code>boolean</code> |  |
@@ -655,7 +655,7 @@ Human readable topic representation
 | name | <code>string</code> | The topic name |
 | author | <code>string</code> | The topic author base58 id |
 | parent | <code>string</code> | The topic parent base58 id |
-| # | <code>object.&lt;string, string&gt;</code> | The topic sub topics, were the keys are names and the values base58 representations of the topic |
+| # | <code>object.&lt;string, string&gt;</code> | The topic sub topics, where the keys are names and the values base58 representations of the topic |
 | metadata | <code>object</code> | Topic metadata object |
 | metadata.created | <code>string</code> | Date in ISO string format |
 | metadata.allowedPublishers | <code>Array.&lt;string&gt;</code> | Array of base58 peer ids allowed to publish |

src/dag/event-node.js

@@ -28,7 +28,7 @@ const { linkUnmarshalling, linkMarshalling } = require('./utils')
  * @typedef {Object} ReadableEvent
  * @property {string} topicCID
  * @property {string} author -  The event author base58 id
- * @property {Buffer} payload -  Event payload
+ * @property {number} payloadSize -  Event payload size in bytes
  * @property {string} publisher -  The event publisher base58 id
  * @property {string} parent -  The event parent base58 id
  * @property {boolean} isPublished
@@ -160,7 +160,7 @@ class EventNode {
     return {
       topicCID: this.topicCID.toBaseEncodedString(),
       author: this.author.toB58String(),
-      payload: this.payload,
+      payloadSize: this.payload.length,
       publisher: this.publisher && this.publisher.toB58String(),
       parent: this.parent && this.parent.toBaseEncodedString(),
       isPublished: this.isPublished,