v0.54.11

Fixed

• Calendar – unreadable time-axis labels: The week and day view time-axis labels used the disabled-text token (--color-text-disabled), which fell far below the WCAG AA 4.5:1 contrast ratio against the grid background (~1.2:1 in light mode, ~1.5:1 in dark mode). Switched to --color-text-tertiary for legible, AA-compliant times in both themes.
• Navigation – "Household" section label showed a raw key: The desktop sidebar section heading rendered as NAV.SECTION.HOUSEHOLD instead of the translated label. The locale key was stored as a flat "section.household" string inside nav, but t() resolves dot-paths as nested objects, so it never matched and fell back to the (uppercased) key. Restructured the key to a nested nav.section.household object across all 16 locales.
• Meal plan & list headers scrolled under glass cards: Sticky section headers in the meal plan (.day-header), calendar agenda (.agenda-day__header), and contacts list (.contact-group__header) sat on the base z-layer (--z-base), so translucent Liquid Glass cards rendered above them while scrolling. Raised them to --z-sticky so they stay on top.