Add TI deletion UI

[guan404ming]

Related Issue

#50104
cc: @bbovenzi @pierrejeambrun

Why

• currently there is no UI for TI deletion

How

• add DeleteTaskInstanceButton with the DeleteDialog

Screen.Recording.2025-05-06.at.6.45.38.PM.mov

---

^ Add meaningful description above
Read the Pull Request Guidelines for more information.
In case of fundamental code changes, an Airflow Improvement Proposal (AIP) is needed.
In case of a new dependency, check compliance with the ASF 3rd Party License Policy.
In case of backwards incompatible changes please leave a note in a newsfragment file, named {pr_number}.significant.rst or {issue_number}.significant.rst, in airflow-core/newsfragments.

[ephraimbuddy]

Why do you want to delete TI? Is there an equivalent API/CLI option for deleting TI?

[guan404ming]

Especially when iterating on dag changes, it is sometimes very helpful to be able to delete task instance or dag run history. In Airflow 2.x, you could delete records from the DB via the UI, but this isn't yet possible in Airflow 3.

There is user from #50104 said that it would be great to be able to delete TI when iterate on dag changes and I think that make sense. Also, I’ve also implemented the corresponding api endpoint as well in #50165.

[bbovenzi]

Two comments

[guan404ming]

Thanks!