docs: add to-do list to README

README.md

@@ -1,17 +1,96 @@
-# dailyou
+# DailyYou
 
-A new Flutter project.
+A private, on-device mood journal for Android and iOS built with Flutter. All data stays on your device — no cloud, no accounts.
 
-## Getting Started
+## Features
 
-This project is a starting point for a Flutter application.
+- **Multi-step mood logging** — guided wizard capturing mood, sleep, energy, positivity, and self-worth in one flow
+- **Activity tagging** — log what you've been doing; custom activities supported
+- **On-device AI insights** — weekly and monthly reflections powered by MediaPipe on-device LLM (no data leaves the device)
+- **Calendar heatmap** — daily mood averages visualised across a month
+- **Reminders** — optional local notifications to prompt daily check-ins
+- **Biometric lock** — optional fingerprint/Face ID protection
+- **Dark mode** — follows system theme
 
-A few resources to get you started if this is your first Flutter project:
+## Tech stack
 
-- [Learn Flutter](https://docs.flutter.dev/get-started/learn-flutter)
+| Layer | Library |
-- [Write your first Flutter app](https://docs.flutter.dev/get-started/codelab)
+|---|---|
-- [Flutter learning resources](https://docs.flutter.dev/reference/learning-resources)
+| UI | Flutter 3.x, Material 3 |
+| State management | flutter_riverpod 3.x (non-codegen) |
+| Database | Drift 2.x (SQLite) |
+| Charts | fl_chart |
+| On-device LLM | flutter_mediapipe_chat |
+| Notifications | flutter_local_notifications |
+| Biometrics | local_auth |
+| Export | pdf + share_plus |
 
-For help getting started with Flutter development, view the
+## Getting started
-[online documentation](https://docs.flutter.dev/), which offers tutorials,
+
-samples, guidance on mobile development, and a full API reference.
+```bash
+flutter pub get
+dart run build_runner build --delete-conflicting-outputs
+flutter run
+```
+
+> Android requires core library desugaring — already configured in `android/app/build.gradle.kts`.
+
+## Project structure
+
+```
+lib/
+  app.dart                    # Root widget, theme, routing
+  main.dart                   # Entry point
+  core/
+    database/                 # Drift schema, DAOs, generated code
+    llm/                      # LlmService abstraction + MediaPipe impl
+    providers/                # Riverpod providers (mood, activity, settings, LLM, insights)
+  features/
+    log_mood/                 # Mood logging wizard screen + widgets
+  shared/
+    widgets/                  # Reusable UI components
+```
+
+## To-do
+
+### Core screens
+- [ ] Bottom nav shell (home, history, insights, settings)
+- [ ] History / calendar heatmap screen
+- [ ] Day detail screen — list entries for a selected day
+- [ ] Insights screen — weekly/monthly AI summaries
+- [ ] Settings screen — reminders, biometrics, theme, data export
+- [ ] Onboarding flow — first-launch walkthrough
+
+### Mood logging
+- [ ] Edit existing entry (tap from day detail)
+- [ ] Free-text note step in the wizard
+- [ ] Tag selection step
+
+### Activities
+- [ ] Activity management screen — add, reorder, delete custom activities
+- [ ] Seed database with default activities on first launch
+
+### AI / insights
+- [ ] Model download + progress UI
+- [ ] Query mode — ask a free-form question about your data
+- [ ] Prompt builder — serialize mood history into LLM context
+
+### Analytics
+- [ ] Charts screen — mood trend line, activity frequency bar chart, sleep vs mood scatter
+
+### Infrastructure
+- [ ] Local notifications — schedule and cancel reminders
+- [ ] Biometric lock — gate app on fingerprint/Face ID
+- [ ] PDF export and share sheet
+- [ ] App icon and splash screen
+
+---
+
+## Database schema
+
+- `MoodEntries` — mood (1–5), sleep minutes, energy, positivity, self-worth, optional note
+- `Activities` — built-in and custom activities with icon and colour
+- `EntryActivities` — many-to-many join between entries and activities
+- `Tags` — free-form tags
+- `LlmInsights` — cached AI-generated insight text keyed by prompt SHA-256
+- `UserSettings` — key/value store for app preferences