Fix: Added Batch delete support for flow runs

[saifxyzyz]

This PR adds batch delete functionality to the cli
partially closes #19904

• Before:

prefect flow-run delete 8d38609e-0a80-4045-bfb1-8f3c07e5cf55
prefect flow-run delete 3b7ce29f-64cf-4d1b-ad16-cff9cac1ce61
prefect flow-run delete ecfbecf9-4841-4320-980f-3405bc11b398
prefect flow-run delete 1b230e8e-69e9-4db0-b169-838a00d74db6

• After:

prefect flow-run delete 8d38609e-0a80-4045-bfb1-8f3c07e5cf55 3b7ce29f-64cf-4d1b-ad16-cff9cac1ce61 ecfbecf9-4841-4320-980f-3405bc11b398 1b230e8e-69e9-4db0-b169-838a00d74db6

Checklist

• This pull request references any related issue by including "closes <link to issue>"
  • If no issue exists and your change is not a small fix, please create an issue first.
• If this pull request adds new functionality, it includes unit tests that cover the changes

[codspeed-hq]

Merging this PR will not alter performance

✅ 2 untouched benchmarks

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_{Comparing saifxyzyz:fix-batchdelete (ec387ca) with main (06750f7)}

[zzstoatzz]

hi @saifxyzyz - thanks for the PR, i think we'd need to clean up the static analysis failures and add test coverage for this change: https://docs.prefect.io/contribute/dev-contribute

let me know if you have any trouble with this!

[saifxyzyz]

Hey @zzstoatzz , I've taken care of the static analysis failure and added tests

[zzstoatzz]

Hey @saifxyzyz — thanks for the PR and for addressing the earlier feedback

one behavior change I’m a little concerned about: flow-run delete now appears to exit 0 even when some/all requested IDs fail. that’s a departure from existing CLI delete semantics (single delete exits non‑zero when not found; bulk delete ops elsewhere tend to abort on failure). i’d suggest keeping the best‑effort deletes but returning a non‑zero exit code if any deletions fail (while still printing the per‑ID summary), preserving scriptability without losing the new UX. if you’re good with that direction, we should update the tests accordingly.

related UX nit: for the single‑ID case, it could still show the ID in the confirmation prompt.

[saifxyzyz]

on it

[saifxyzyz]

PTAL @zzstoatzz I've made the requested changes