chore: add shellcheck validation for AI-generated hooks

[caspx]

Added shellcheck validation for operator hook scripts in the Dagger pipeline.

How to test:

use PRE_SETUP_HOOK and run simple validation that there is no wekacluster CR in curent k8s cluster

[caspx]

• chore: add shellcheck validation for AI-generated hooks #1978 👈 (View in Graphite)
• main

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[caspx]

@kristina-solovyova how to test it 😅 ?

[graphite-app]

Graphite Automations

"Add anton/matt/sergey/kristina as reviwers on operator PRs" took an action on this PR • (12/17/25)

3 reviewers were added to this PR based on Anton Bykov's automation.

[kristina-solovyova]

@kristina-solovyova how to test it 😅 ?

We need to have an AI decision to run a hook using wekai for this PR.
You can force it by adding "How to test" section in this PR description and write there smth like: use PRE_SETUP_HOOK and run simple validation that there is no wekacluster CR in curent k8s cluster
Just for the test's sake