Habit Tracker

Build a habit tracker app with the following features:

**Home / Today View:**
- List of today's habits, each with a big circular check button
- Tapping the check completes the habit and animates a streak +1
- Missed-day indicator next to habits that weren't done yesterday

**Habit Management:**
- Create a habit: name, icon, colour, frequency (Daily / X times per week / Specific weekdays), reminder time, goal (e.g. 30 days)
- Edit, archive, or delete a habit
- Reorder habits via drag

**Streaks & Stats:**
- Streak counter on every habit (current streak + longest streak)
- Calendar view showing last 30 days, green dot = done, grey = missed
- Weekly stats: completion %, best day of the week, most-skipped habit
- Lifetime stats: total check-ins, longest-ever streak, habits completed

**Reminders:**
- Local notifications at the habit's reminder time (web push + email backup)
- Streak-freeze tokens: earn 1 per 7-day streak; spend to protect a streak after a missed day

**Gamification:**
- Levels: hit milestones (7, 30, 90, 365 days) to unlock badges
- Daily quote or tip shown when all habits are done

**Design:**
- Clean, calm palette — soft greens and neutrals
- Satisfying micro-animations on habit completion (confetti, checkmark bounce)
- Mobile-first — 80% of users open this on their phone
- Dark mode

Store everything in Supabase. User-scoped RLS. Use Supabase Edge Functions to send reminder emails via Resend.