UX: Restore sub-phase progress detail in deploy progress table

## Description

The deploy progress table's \\detail\\ column is always empty during execution — it only gets populated on error. The old deploy path used `async.RunWithProgress` to pipe real-time detail like \\Packaging service api (Compiling...)\\ into the spinner.

The tracker's `Update(svc, phase, detail)` API already supports this; it just needs a real progress callback wired in from the Package/Publish/Deploy calls instead of `async.NewNoopProgress()`.

## Impact

This is a noticeable UX regression for long deploys where the user wants to know *what's happening* within a phase, not just *which phase* is active.

## Context

- Requested by @vhvb1989 in [PR #7776 comment](https://github.com/Azure/azure-dev/pull/7776#issuecomment-4280643268)
- The API surface exists (`Update(svc, phase, detail)`), just needs wiring
- Related: #7977 (table indentation/spacing)