feat: Web console support for resetToLatestAndBackfill

[aho135]

Description

Adds web-console support for the resetToLatestAndBackfill endpoint that was added in #19477

Release note

Adds web-console support for the resetToLatestAndBackfill endpoint

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Key changed/added classes in this PR

• web-console/src/dialogs/supervisor-reset-to-latest-dialog/supervisor-reset-to-latest-dialog.tsx
• web-console/src/views/supervisors-view/supervisors-view.tsx

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This PR has:

• been self-reviewed.
• added documentation for new or modified features or behaviors.
• a release note entry in the PR description.
• added Javadocs for most classes and all non-trivial methods. Linked related entities via Javadoc links.
• added comments explaining the "why" and the intent of the code wherever would not be obvious for an unfamiliar reader.
• added unit tests or modified existing tests to cover new code paths, ensuring the threshold for code coverage is met.
• added integration tests.
• been tested in a test Druid cluster.

[FrankChen021]

Severity	Findings
P0	0
P1	0
P2	1
P3	0
Total	1

Severity	Findings
P0	0
P1	0
P2	1
P3	0
Total	1

Reviewed 4 of 4 changed files.

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This is an automated review by Codex GPT-5.5

[FrankChen021]

[P2] Gate reset-and-backfill to eligible supervisors

This action is added to every supervisor row, but the endpoint rejects supervisors that are not seekable-stream supervisors and also rejects supervisors that are not in RUNNING state. That means suspended rows and non-stream supervisor types such as autocompact or scheduled_batch can show a destructive confirmation flow that deterministically fails with a 400 after the user confirms. Please gate this action to eligible running stream supervisors, or disable it with an explanation.