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Build Log – 2025-12-30

Build Log – 2025-12-30

📅 Daily Log — December 30, 2025

🧠 Context / Focus for Today

Redesign landing page with minimal aesthetic. Implement cross-device sync for user preferences and pace zones. Enable AI Coach access to user's personalized pace zones. Migrate localStorage-only data to Supabase for cloud sync.

✔️ Things I Got Done Today

Landing Page Redesign (PR #146)

Minimal Aesthetic Overhaul

  • Complete redesign of landing page with clean, editorial design:
    • Light/cream background (#FAFAF9) with generous whitespace
    • Sora font throughout for consistency with logged-in app
    • Simplified navigation and hero section
    • Numbered feature list with sticky header layout
    • Streamlined pricing card and CTA sections
  • Updated auth modal with matching minimal styling:
    • Consistent with new landing page design
    • Clean, modern interface
    • Better visual hierarchy
  • Reduced code complexity:
    • Simplified component structure
    • Removed unnecessary styling
    • More maintainable codebase

Pace Zones Supabase Sync (PR #147)

Database Schema

  • Created migration (20251230000000_add_pace_zones.sql):
    • Added run_pace_zones JSONB column to athlete_profiles table
    • Added run_threshold_pace_seconds INTEGER column
    • Added pace_unit TEXT column (min_per_mile or min_per_km)
    • Proper column comments for documentation

Enhanced useUserTrainingSettings Hook

  • Updated lib/training/useUserTrainingSettings.ts with Supabase sync:
    • Fetches from Supabase on auth, falls back to localStorage
    • Writes to both localStorage (offline) and Supabase (sync)
    • Auto-migrates localStorage data on first authenticated load
    • Debounced Supabase writes for performance
    • Error handling and fallback logic
  • Storage strategy:
    • localStorage: Used as offline cache
    • Supabase: Source of truth when authenticated
    • Automatic migration on first authenticated load

AI Coach Integration

  • Updated athlete-profile API to accept/return pace zone data:
    • Pace zones included in profile fetch
    • Pace zones included in profile update
  • Injected user's personalized pace zones into AI Coach system prompt:
    • AI Coach now sees user's configured pace zones
    • Workouts generated using user's actual pace zones
    • Better personalized workout recommendations
  • Updated app/api/coach/route.ts:
    • Fetches pace zones from athlete profile
    • Formats paces in user's preferred units
    • Includes pace zones in system prompt

ZonesSettings Integration

  • Updated ZonesSettings.tsx:
    • Passes accessToken for sync support
    • Uses updated useUserTrainingSettings hook
    • Automatic sync to Supabase on changes

User Preferences Sync

Database Schema

  • Created migration (20251230100000_add_dark_mode.sql):
    • Added dark_mode BOOLEAN column to athlete_profiles table
    • Default value: false
    • Enables cross-device dark mode sync

useUserPreferences Hook

  • Created new hooks/useUserPreferences.ts hook:
    • Manages dark mode, units, training goal, onboarding status
    • localStorage + Supabase sync strategy
    • Automatic migration of localStorage data to Supabase
    • Cross-device preference sync
  • Storage strategy:
    • localStorage: Used as offline cache
    • Supabase: Source of truth when authenticated
    • Automatic migration on first authenticated load
  • Features:
    • updateDarkMode() - Sync dark mode preference
    • updateUnitPreference() - Sync metric/imperial preference
    • updateTrainingGoal() - Sync training goal
    • updateOnboardingCompleted() - Sync onboarding status
    • updatePreferences() - Batch update preferences

Component Updates

  • Updated DarkModeToggle.tsx:
    • Uses new useUserPreferences hook
    • Syncs dark mode to Supabase
    • Cross-device dark mode sync
  • Updated TrainingCalendarApp.tsx:
    • Uses preferences hook for unit preference
    • Syncs preferences to Supabase
    • Better preference management
  • Updated UserProfileDropdown.tsx:
    • Syncs display name and avatar to user_profiles
    • Better profile management
    • Integrated with preferences system

AI Coach Integration

  • Updated AI Coach to format paces in user's preferred units:
    • Respects metric/imperial preference
    • Consistent unit display
    • Better user experience

Merge & Conflict Resolution

  • Resolved merge conflict in athlete-profile route:
    • Merged origin/main into feat/workout-sharing
    • Resolved conflicts in API route
    • Maintained all features from both branches

🚧 In Progress

  • Testing cross-device preference sync
  • Validating pace zone sync with AI Coach
  • Performance testing of preference sync
  • User feedback collection

🎯 Targets for Tomorrow

  1. Continue preference sync refinement — ensure reliable cross-device sync
  2. Performance optimization — optimize sync performance
  3. Error handling — improve error handling for sync failures
  4. Documentation — document preference sync behavior

🤔 Notes / Observations

  • Landing page redesign creates professional, minimal aesthetic
  • Pace zones sync enables AI Coach to use personalized zones
  • User preferences sync enables cross-device consistency
  • localStorage + Supabase strategy provides offline support with cloud sync
  • Automatic migration ensures smooth transition for existing users
  • AI Coach integration significantly improves personalization
  • All sync features completed — platform now supports cross-device sync

📈 Momentum Score: 9.2 / 10

Excellent progress on landing page redesign and preference sync. Minimal aesthetic creates professional appearance. Pace zones and user preferences sync enable cross-device consistency and AI Coach personalization. Automatic migration ensures smooth user experience. Platform now supports comprehensive cross-device sync.