watch

Checklist

Describe the bug
No more than 1 user can subscribe to the same playlist, The trash icon appears for other users on the playlist page which does not function, attempting to call subscribe_playlist manually causes a 500 error with:

duplicate key value violates unique constraint "playlists_pkey" (PQ::PQError)

Steps to Reproduce

1. Under account A locate and subscribe to a playlist

Not sure if this is the correct way to do it, but I wanted to save a cache script I could easily run.

"cache": {
      "desc": "Cache versions and update lock file",
      "cmd": "deno cache server.ts --lock-write",
      "lock": "./lock.json"
}

The result however when running denon cache is an endless loop instead of just executing it once, looks like this:

![Skärmavbild

Since we're pretending to be an Espruino Bangle.js ... the message formats that we can support are documented here:
https://www.espruino.com/Gadgetbridge
There are a few that are not yet supported that could be added:

1. "find" - we could turn on the screen, show a page that allows clicking to say you've found the watch, vibrate and make noise - depending on various existing config settings (e.