Enable TypeScript

[Koenkk]

This PR enables TypeScript support for the Zigbee2MQTT code base.

Related:

• Changes for TypeScript  zigbee2mqtt.io#831
• Changes for Typescript zigbee2mqtt/hassio-zigbee2mqtt#153

[nurikk]

Looks got to me. But I have few concerns

1. For the folks who're using z2m from bare git repo (git clone, npm ci, npm run start) how this flow will work?
2. For the folks who're using npm install --force --production -g Koenkk/zigbee2mqtt#dev how this flow will work?

minor: we can truely say that ts is implemented after we convert at least one js file to ts (since it will require a whole bunch of deps like @types/node)

[Koenkk]

For the folks who're using z2m from bare git repo (git clone, npm ci, npm run start) how this flow will work?

They need to run npm run build now between npm ci and npm start. Check is done here: https://github.com/Koenkk/zigbee2mqtt/pull/8074/files#diff-e727e4bdf3657fd1d798edcd6b099d6e092f8573cba266154583a746bba0f346R40 . Docs are also updated with this https://github.com/Koenkk/zigbee2mqtt.io/pull/831/files

For the folks who're using npm install --force --production -g Koenkk/zigbee2mqtt#dev how this flow will work?

I'm not aware of this installation option and this is also not officially supported. Those should install the npm package instead.

e can truely say that ts is implemented after we convert at least one js file to ts (since it will require a whole bunch of deps like @types/node)

This is already done here: https://github.com/Koenkk/zigbee2mqtt/pull/8074/files#diff-38317fef586533d730d87de8397da2c496a456ac6efa6e33ba846bd8755a0b4a

[Koenkk]

Just updated index.js to automatically build on start when needed so Koenkk/zigbee2mqtt.io#831 is not needed anymore.

• dist folder contains a file dist/.hash
• when this .hash file does not exists index.js will automatically build z2m on npm start
• when you do a git pull the hash changes, if the current hash mismatches with the one in .hash a rebuild is done
• on environments were z2m is not in a git repo (e.g. docker) a rebuild is never done