bot/modules/nostr: decode nostr sk from env. var

Decode nostr secret key from environment variable using hex
encoding. Also replace requires with imports.

Author: webwarrior-ws

Diff for: bot/modules/nostr/config.ts

@@ -1,7 +1,8 @@
-const notsrPure = require('nostr-tools/pure');
-const { SimplePool } = require('nostr-tools/pool');
+import notsrPure from 'nostr-tools';
+import { SimplePool } from 'nostr-tools';
 
-const sk = process.env.NOSTR_SK || notsrPure.generateSecretKey();
+const nostrSkEnvVar = process.env.NOSTR_SK
+const sk = nostrSkEnvVar ? Buffer.from(nostrSkEnvVar, 'hex') : notsrPure.generateSecretKey();
 const pk = notsrPure.getPublicKey(sk);
 
 export const getPrivateKey = () => sk;

Diff for: bot/modules/nostr/events.ts

@@ -1,4 +1,4 @@
-const { finalizeEvent, verifyEvent } = require('nostr-tools/pure');
+import { finalizeEvent, verifyEvent } from 'nostr-tools';
 import * as Config from './config';
 
 import { Community } from '../../../models';