Add offline.html served by the service worker when a never-visited route
is requested without network. Disable rubber-band overscroll bounce and
gray tap highlights so standalone mode feels less like a webview. Split
theme-color by prefers-color-scheme so the iOS status bar matches dark
mode, and add a proper 180x180 apple-touch-icon instead of downscaling
the 192px icon.
Ground the 21-day habit myth in actual research (Lally et al. 2010) and let
users pick a target period (21/66/254 days or unlimited) matching that
study's easy/median/hard automaticity timelines when creating a habit,
with progress shown on the habits list.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Completed and abandoned habits were both lumped under a single terminal
state, making it impossible to tell "finished successfully" apart from
"gave up" when reviewing habit history.
FastAPI + SQLAlchemy/Alembic + MariaDB backend with Jinja2/htmx/Alpine
server-rendered frontend. Multi-user via Google OAuth, daily habit
tracking, monthly/weekly history views, Web Push reminders via
APScheduler, and PWA support (manifest, service worker, offline caching).
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>