feat: slot generation for OOO days is working

[retrogtx]

What does this PR do?

• Fixes #17601 (GitHub issue number)
• Fixes CAL-4704 (Linear issue number - should be visible at the bottom of the GitHub issue description)

https://www.loom.com/share/4f37bf25883e45b2914f894521af627c?sid=37f52d6d-cbf9-4c48-82f4-4cf7345e2bce

Mandatory Tasks (DO NOT REMOVE)

• [ ] I have self-reviewed the code (A decent size PR without self-review might be rejected).
• [x] I have updated the developer docs in /docs if this PR makes changes that would require a documentation change. If N/A, write N/A here and check the checkbox. N/A.
• [x] I confirm automated tests are in place that prove my fix is effective or that my feature works.

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[graphite-app[bot]]

Graphite Automations

"Add consumer team as reviewer" took an action on this PR • (02/11/25)

1 reviewer was added to this PR based on Keith Williams's automation.

"Add community label" took an action on this PR • (02/11/25)

1 label was added to this PR based on Keith Williams's automation.

"Add foundation team as reviewer" took an action on this PR • (02/26/25)

1 reviewer was added to this PR based on Keith Williams's automation.

[retrogtx]

There need to be tests added to verify this functionality

This change takes care of it -> https://github.com/calcom/cal.com/pull/19071

[github-actions[bot]]

E2E results are ready!

• Workflow #55149.2 latest results

[retrogtx]

Hi @retrogtx as this code is so critical to the core functionality we've opted to adopt a TDD (Test Driven Development) approach. This means that every code change requires the following:

• No alterations to existing tests unless it can be demonstrated clearly that they are wrong or out of date.
• Any code change or change in code flow requires a test to demonstrate that the code resulted in a wrong result before - and that the changes you've made are effective.

Once this is in place, happy to merge :)

Ps. there's another PR about to come in that will change the code you have modified, so it'll likely result in a merge conflict; just a headsup.

for sure

just made minor changes from what @hbjORbj requested, good to go from my side!

[hbjORbj]

@retrogtx please add tests as requested by Alex !

[retrogtx]

@retrogtx please add tests as requested by Alex !

oh I thought there will be a change coming in that will modify the PR, so was waiting for that

[retrogtx]

guys everything has been resolved!

[github-actions[bot]]

This PR is being marked as stale due to inactivity.

[kart1ka]

Closing due to merge conflicts , failing tests and staleness.