chat refactors

[chrisnojima-zoom]

pulled non legends changes from #29023

[chrisnojima]

this adds some logging. i was seeing inbox unboxing hang every once in awhile. if i restart the ui i could 100% repro this and spent a ton of time trying to see where things were going wrong (see plans/inbox-load-fail.md). after i restarted the service the problem went away and couldn't be repoed so now i think its something in the go layer

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[Copilot]

Pull request overview

Copilot reviewed 96 out of 98 changed files in this pull request and generated no new comments.

Comments suppressed due to low confidence (1)

shared/chat/conversation/messages/attachment/file.tsx:188

• progressOverlay sets position: 'absolute' and width: 'auto', which overrides the fullWidth={true} intent on the progress container. This can cause the progress bar/label area to shrink-wrap instead of spanning the attachment row, making the progress UI hard to read. Consider removing the explicit width and using right: 0 / width: '100%' so the overlay honors full width (and optionally add padding as needed).

        {!!progressLabel && (
          <Kb.Box2 direction="horizontal" fullWidth={true} alignItems="center" style={styles.progressOverlay}>
            <Kb.Text type="BodySmall" style={styles.progressLabelStyle}>
              {progressLabel}
            </Kb.Text>
            {hasProgress && <Kb.ProgressBar ratio={progress} />}
          </Kb.Box2>
        )}

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