Accessibility/responsive audit pass with two new permanent test
gates (test/a11y_test.dart: WCAG text contrast + labeled tap
targets on every page in both themes; test/responsive_test.dart:
no layout overflow at 800/960/1280/1920 px). Findings fixed:
- Light theme primary/tertiary sky-500 → sky-700: white text on
the lighter accent only reached 2.8:1 (welcome CTA, active
sidebar label); sky-700 clears WCAG AA at ~5.9:1. Dark theme
unchanged (already compliant). FABs now follow the same accent
instead of Material 3's washed-out tonal default.
- Audit page: filter chips collapse into a checkmark popup menu
below 900 px window width (app bar overflowed); the live-status
bar's left text is now Expanded with ellipsis so the row can
shrink, and the disconnected state's copyable error gets the
full remaining width.
- German strings now use formal address consistently (~20 strings
still used du-forms next to Sie-forms on welcome/setup), the
audit event-type chip "Step" is "Schritt", and the doctor
page's event count pluralises correctly in both languages.
flutter analyze clean, 64 tests green. Screenshot pass light+dark
via the guide-shots harness (verified parity, no overflows).
Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>
