feat: Redesigning expected experiment states [DET-7278] [DET-7719]

[mapmeld]

Description

This WIP branch is following our Figma flowchart for more intuitive UI for Experiment State.

This change applies three rules:

• While the experiment.state is Active / Job is Scheduled, its UI label is "Running"
• If the experiment requires too many slots to ever run on an existing agent (currently using (e.config->'resources'->>'slots_per_trial')::int <= (SELECT MAX(slots) FROM slots_by_agent)), its UI label is "Queued"
• For these two states, the state badge UI will match on the Experiment List and Detail views

This is part of a larger project to change any state badge in the UI (Experiments, Trials, Tasks, Commands, and Jobs).

Test Plan

SQL to change an experiment slots_per_trial: update experiments set config = config||'{"resources":{"slots_per_trial": 3}}' WHERE id = 1887;

There ought to be a helper function used in the decoder for Experiment and ExperimentList, which then has its own test.

From my testing: pause, stop, and complete appear to be consistently working.

Checklist

• [x] User-facing API changes need the "User-facing API Change" label.
• [x] Release notes should be added as a separate file under docs/release-notes/.
• [x] Licenses should be included for new code which was copied and/or modified from any external code.

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[stoksc]

@mapmeld can we query plan 'get_active_allocations' in the most insane case and post back here? just to make sure we're not going to regret this.

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[mapmeld]

@stoksc Added STATE_RUNNING back into the mix, and rebased to get the new experiments bun code, so hopefully that all runs through