Add basic local dev script

[pankajastro]

closes: #30

Add a simple script and document to run the API server, UI and generate env template for API server

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[Lee-W]

in addition to required env vars, we'll also need to setup gcp.json and GOOGLE_APPLICATION_CREDENTIALS
https://cloud.google.com/docs/authentication/application-default-credentials
cc @sunank200

[sunank200]

Don't we review dockerfile with env here? And how does one set env? Another thing to consider is a local dev story for the slack app. You can use something like this to forward the port for slackbot: https://ngrok.com/docs/secure-tunnels/non-local/#:~:text=Forwarding%20to%20servers%20on%20a,network%20address%20and%20port%20instead.

[pankajastro]

in addition to required env vars, we'll also need to setup gcp.json and GOOGLE_APPLICATION_CREDENTIALS https://cloud.google.com/docs/authentication/application-default-credentials cc @sunank200

Yes, But don't want to checkin the copy command so added a comment in dockerfile also added a way to generate template for env require in API

[pankajastro]

Don't we review dockerfile with env here? And how does one set env? Another thing to consider is a local dev story for the slack app. You can use something like this to forward the port for slackbot: https://ngrok.com/docs/secure-tunnels/non-local/#:~:text=Forwarding%20to%20servers%20on%20a,network%20address%20and%20port%20instead.

Added way to generate a template for env. slack part will be addressed #42

[pankajastro]

Merging since I need for #39. feel free to post feedback will take in a separate PR

[sunank200]

Lets not merge this PR before approval please @pankajastro

[sunank200]

This PR has better approach of local dev story: #42