Port Slack Events Bot into Laravel

[oliviasculley]

This is heavily based on #540 but should take us all the way to a fully working slack bot implementation. Thank you @bogdankharchenko!

In addition, a new worker docker instance will need to be configured to run post refreshes

[oliviasculley]

After chatting with @irby, we should probably hash+salt the access tokens like user passwords, and then I think we still need to implement the check_api action to happen automatically every hour, I'll probably do more of that later. However, if someone else has a test setup they're welcome to message me and push to my branch!

[oliviasculley]

I had a brain fart, we're probably not going to want to hash the access token, I'll probably just remove that table later since I don't think we're going to need it for anything

[oliviasculley]

So turns out the current implementation working in our workspace might've been a bit misleading, since we were relying on our bot token rather than the installation-specific tokens to access the Slack API. Even though it was working in my testing, I think we need to actually use the installation-specific access tokens for each installation otherwise it would break for other installations, so I need to test this with my current implementation as well.

I'm currently trying to get the tests to pass and this should be ready after that I think

[oliviasculley]

All the unresolved comments are items that I still need to get to with this PR (or that someone else can get to), but I'll hopefully get to these soon

[irby]

Code-wise I'm fine with everything here.

[allella]

@oliviasculley

Bogdan has a production server running on Railway that we're going to be testing.

The main thing that I could see holding us up is that we're currently proxying /slack paths for the Slack bot to the localhost container on my old server.

I'm sure we could figure how to temporarily proxy that through a sub-domain, but this PR already aimed to just do away with the Python implementation in favor of built in PHP.

I provided comments on documentation, but I hoped to see if you'd have time to get this one over the finish line if there's anything remaining to be done.

[oliviasculley]

I just started paying for the fancy claude code, so I can update this branch and get it in tip top shape soon, but I have some other stuff that I need to get done first

[bogdankharchenko]

@oliviasculley great, I am putting this into Draft mode, let me know if you need any help!

[oliviasculley]

@bogdankharchenko I think this might be ready now!

[oliviasculley]

Alright, this has been refactored a large amount of times and tested to be working, so it should be fully ready now!

[allella]

The Python bot seems to run on Wednesday at midnight, so we have time before that old one runs.

I'm assuming I should do a Docker stop on the Python version so we don't end up double posting to the various Slack channels, correct?

[oliviasculley]

@allela yes that's correct