Missing env keys and optional chaning in process.env causing unusual errors

[Nabhag8848]

Description

• As there is current addtion of slack integration, env keys ( just keys not value ) related to slack are missing, causing application with errors when running whole application npm run dev . Following keys are missing in .env.example.

SLACK_CLIENT_ID=
SLACK_CLIENT_SECRET=
SLACK_SIGNING_SECRET=
SLACK_SOCKET_TOKEN=
SLACK_APP_ID=

• Didn't started stable as the redirect destination of /docs isn't defined. for fixing this we need to define a default port (ie: 8080 ) to start docs and add flag --port <number> for npm run docs

--- other env keys
DOCS_URL=`http://localhost:8080` (for local)

• There are places where env variables are accessed using optional chaning which never will be optional, causing usual crash.

Screenshots

• Slack key error:

• Missing docs key

Additional information

• Willingly need to contribute, As this are unrelated issue but small, do you need me to make different PRs or bundle up in same with different commits would be fine ?
• is the idea about docs giving default port Looks good to you ? or am i missing something in future plans ?

[Nabhag8848]

Hey @nevo-david just few fixes i observed while setting up. waiting for acknowledge for PR, with my questions mentioned.

[nevo-david]

Hi @Nabhag8848! :)
Thank you so much for this,
the library was not yet released to the public,
I am still working on updating the documentation and variables