DocsMint v0.5.1

Fixed\n\n- Render embedded dashboard and search dropdowns in portals so filter rows no longer stretch vertically.\n- Preserve colored tag indicators in dashboard filters.\n- Refresh sidebar categories, folders, and recent documents immediately after host document mutations.\n- Keep share modal layering above popovers and persistent chrome.\n\nThe frozen 0.5.0 public API and workspace contract remain unchanged.