Compact task triage dialog

A short task such as “Danny” no longer sits at the top of an almost full-screen empty stage. The dialog keeps a stable top edge and grows downward with the content that is actually present.

• Long notes, emails, and checklists expand until the viewport limit, then scroll inside one body region.
• Simple tasks stay compact without making the dialog jump sideways or recenter.
• Phone and installed-app Triage remain full-screen, including landscape, where the larger workspace is useful.