* TaggedVersion information in structs, rather than job_endpoint

* Test for taggedVersion description length

* Some API plumbing

* Tag and Untag at API level on down, but am I unblocking the wrong thing?

* Code and comment cleanup

* Unset methods generally now I stare long into the namespace abyss

* Namespace passes through with QueryOptions removed from a write requesting struct

* Comment and PR review cleanup

* Version back to VersionStr

* Generally consolidate unset logic into apply for version tagging

* Addressed some PR comments

* Auth check and RPC forwarding

* uint64 instead of pointer for job version after api layer and renamed copy

* job tag command split into apply and unset

* latest-version convenience handling moved to CLI command level

* CLI tests for tagging/untagging

* UI parts removed

* Add to job table when unsetting job tag on latest version

* Vestigial no more

* Compare versions by name and version number with the nomad history command (#23889)

* First pass at passing a tagname and/or diff version to plan/versions requests

* versions API now takes compare_to flags

* Job history command output can have tag names and descriptions

* compare_to to diff-tag and diff-version, plus adding flags to history command

* 0th version now shows a diff if a specific diff target is requested

* Addressing some PR comments

* Simplify the diff-appending part of jobVersions and hide None-type diffs from CLI

* Remove the diff-tag and diff-version parts of nomad job plan, with an eye toward making them a new top-level CLI command soon

* Version diff tests

* re-implement JobVersionByTagName

* Test mods and simplification

* Documentation for nomad job history additions

* Prevent pruning and reaping of TaggedVersion jobs (#23983)

tagged versions should not count against JobTrackedVersions
i.e. new job versions being inserted should not evict tagged versions

and GC should not delete a job if any of its versions are tagged

Co-authored-by: Daniel Bennett <[email protected]>

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Co-authored-by: Daniel Bennett <[email protected]>

* [ui] Version Tags on the job versions page (#24013)

* Timeline styles and their buttons modernized, and tags added

* styled but not yet functional version blocks

* Rough pass at edit/unedit UX

* Styles consolidated

* better UX around version tag crud, plus adapter and serializers

* Mirage and acceptance tests

* Modify percy to not show time-based things

---------

Co-authored-by: Daniel Bennett <[email protected]>

#24059)

* Job revert command and API endpoint can take a string version tag name

* RevertOpts as a signature-modified alternative to Revert()

* job revert CLI test

* Version pointers in endpoint tests

* Dont copy over the tag when a job is reverted to a version with a tag

* Convert tag name to version number at CLI level

* Client method for version lookup by tag

* No longer double-declaring client

* Rough pass at the UI for version diff dropdown

* Cleanup and diff fetching via adapter method