nodejs: add tests to library (#7694)

* nodejs: add tests to library

* new tests

* remove message splitting

* fix race

* docs

* replace extract-zip with yauzl that it wraps (high severity issue)

* fix ci tests

* skip server tests on macos and win unless SMP_SERVER is set

* fix win test

* fix win test

---------

Co-authored-by: Evgeny @ SimpleX Chat <259188159+evgeny-simplex@users.noreply.github.com>

packages/simplex-chat-nodejs/docs/bot.Function.subscribeChatItems.md

@@ -8,7 +8,7 @@
 
 > **subscribeChatItems**(`bot`, `onMessage`, `commands`): `void`
 
-Defined in: [src/bot.ts:110](../src/bot.ts#L110)
+Defined in: [src/bot.ts:110](../bot.ts#L110)
 
 ## Parameters
 
@@ -22,6 +22,8 @@ Defined in: [src/bot.ts:110](../src/bot.ts#L110)
 
 ### commands
 
+\{\[`key`: `string`\]: ((`chatItem`, `command`, `chat`) => `void` \| `Promise`\<`void`\>) \| `undefined`; \}
+
 ## Returns
 
 `void`