Opening long conversation lists stretched and repositioned the project menu. Give the conversation submenu its own surface and positioning, aligned to the selected project row with independent viewport clamping and scrolling. Use compact navigation when neither side has room.
Validation: 13 component tests, typecheck and lint passed; 108 Electron fixture checks passed across 14 light/dark scenarios. Full test run timed out after 60 seconds.
Release note: Project activity menus now keep the project list stable when opening long conversation submenus.
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