docs: fabled app overhaul design spec

docs/superpowers/specs/2026-03-11-fabled-app-overhaul-design.md

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+# Fabled App Overhaul — Design Spec
+
+**Date:** 2026-03-11
+**Project:** `/home/bvandeusen/Nextcloud/Projects/fabled_app`
+
+## Goal
+
+Reposition the Flutter Android app from a general-purpose mirror of the web app into a focused mobile companion: the Daily Briefing is the primary experience, Quick Capture is the secondary utility, and Notes/Tasks/Projects are a browsable library — secondary to both.
+
+---
+
+## Navigation & Shell
+
+Three-tab shell replacing the current four-tab (Notes · Tasks · Projects · Chat) structure.
+
+| Tab | Icon | Screen | Route |
+|-----|------|--------|-------|
+| Briefing | `Icons.wb_sunny_outlined` / `Icons.wb_sunny` | `BriefingScreen` | `/briefing` |
+| Library | `Icons.library_books_outlined` / `Icons.library_books` | `LibraryScreen` | `/library` |
+| Chat | `Icons.chat_bubble_outline` / `Icons.chat_bubble` | `ConversationsListScreen` (inline) | `/conversations` |
+
+The `_QuickCaptureBar` remains pinned above the shell on all three tabs. The settings icon stays in the capture bar row.
+
+**Briefing is the initial route** — the app opens directly to the briefing tab on every launch.
+
+**Wide layout (≥ 600dp):** `NavigationRail` on the left (as today), same 3 destinations.
+
+### Dead Code Removed
+
+**Screens deleted:**
+- `lib/screens/notes/notes_list_screen.dart`
+- `lib/screens/tasks/tasks_list_screen.dart`
+- `lib/screens/projects/project_list_screen.dart`
+- `lib/screens/chat/conversations_list_screen.dart`
+- `lib/screens/quick_capture/quick_capture_screen.dart`
+
+**Screens kept:**
+- `lib/screens/notes/note_detail_screen.dart`
+- `lib/screens/notes/note_edit_screen.dart`
+- `lib/screens/tasks/task_edit_screen.dart`
+- `lib/screens/chat/chat_screen.dart`
+- All auth, settings, setup, splash screens
+
+---
+
+## Theme
+
+Custom `ColorScheme` matching the main web app's "Illuminated Transcript" palette, in `lib/core/theme.dart`. System light/dark preference respected.
+
+### Dark theme
+| Token | Value |
+|-------|-------|
+| `background` | `#111113` |
+| `surface` | `#18181c` |
+| `primary` | `#6366f1` |
+| `onSurface` | `#e8e8f0` |
+| `onSurfaceVariant` (muted) | `#8888a8` |
+
+### Light theme
+| Token | Value |
+|-------|-------|
+| `background` | `#f4f4f8` |
+| `surface` | `#ffffff` |
+| `primary` | `#4f46e5` |
+| `onSurface` | `#18181c` |
+| `onSurfaceVariant` (muted) | `#6b6b88` |
+
+### Typography
+- Add `google_fonts` to `pubspec.yaml`
+- `headlineMedium`, `titleLarge`, `titleMedium` → `GoogleFonts.fraunces()`
+- Body styles → system default (unchanged)
+
+### Buttons & Cards
+- Primary action buttons: `BoxDecoration` with `LinearGradient(135°, #6366f1, #4f46e5)`; applied to send buttons in capture bar and briefing reply bar
+- Cards: `borderRadius: 14`, subtle elevation shadow, no explicit border
+
+---
+
+## BriefingScreen
+
+**File:** `lib/screens/briefing/briefing_screen.dart`
+
+The app's primary screen. Opens on launch.
+
+### Layout
+
+```
+AppBar:
+  title: "Briefing" (Fraunces)
+  subtitle: today's date ("Wednesday, March 11")
+  actions: [↻ refresh button]
+
+Body (scrollable column):
+  ┌─ DigestCard ──────────────────────┐
+  │  ☀ Good morning — Mar 11          │
+  │  [first assistant message,         │
+  │   truncated to 5 lines]           │
+  │                  [Show more ↓]    │
+  └───────────────────────────────────┘
+
+  ─── Conversation ───
+
+  [scrollable message list]
+  [streaming bubble while generating]
+
+Bottom pinned:
+  [  Reply to your briefing…  ] [➤]
+```
+
+### Digest Card
+- Extracted widget: `lib/widgets/briefing_digest_card.dart`
+- Shows the content of the first `assistant` message from today's conversation
+- Truncated to 5 lines by default; `[Show more]` expands with `AnimatedSize`
+- If no briefing exists yet: "No briefing yet today" placeholder + "Generate now" button
+
+### Conversation
+- Message bubbles reuse the same widget used in `ChatScreen`; extracted to `lib/widgets/chat_message_bubble.dart` (shared between both screens)
+- User messages: right-aligned, primary colour container
+- Assistant messages: left-aligned, surface container with left accent border (indigo, 2dp)
+- Streaming: a streaming bubble appears at the bottom of the list while SSE is active
+
+### Reply Bar
+- Always visible (pinned to bottom, above system nav bar)
+- Send button: indigo gradient, disabled when input is empty or streaming
+- Submitting a reply uses the existing SSE chat endpoint with today's briefing `conversation_id`
+
+### Overflow Menu (`···`)
+- "View past briefings" → pushes `BriefingHistoryScreen` (simple date list, read-only — no reply bar)
+
+### Refresh Button
+- Calls `POST /api/briefing/trigger` with `{"slot": "compilation"}`
+- Shows `CircularProgressIndicator` in the AppBar while in-flight
+- Reloads conversation on completion
+
+### New Files
+- `lib/screens/briefing/briefing_screen.dart`
+- `lib/screens/briefing/briefing_history_screen.dart`
+- `lib/widgets/briefing_digest_card.dart`
+- `lib/widgets/chat_message_bubble.dart` (extracted from ChatScreen)
+- `lib/data/api/briefing_api.dart` — `getToday()`, `getMessages(id)`, `triggerSlot(slot)`
+- `lib/data/models/briefing_conversation.dart` — `id`, `briefingDate`, `title`, `messages`
+- `lib/providers/briefing_provider.dart` — `briefingTodayProvider` (AsyncNotifier)
+
+---
+
+## LibraryScreen
+
+**File:** `lib/screens/library/library_screen.dart`
+
+Unified browsing screen for notes, tasks, and projects.
+
+### Layout
+
+```
+AppBar:
+  title: "Library"
+  actions: [🔍 search icon → expands inline search bar]
+
+Filter pills (scrollable horizontal row):
+  [All]  [Notes]  [Tasks]  [Projects]
+
+Content:
+  Unified list sorted by updated_at desc
+  Each item: LibraryItemCard
+
+FAB:
+  [+] → bottom sheet: "New note" | "New task"
+```
+
+### Filter Pills
+| Pill | Content | Extra controls |
+|------|---------|----------------|
+| All | Notes + tasks interleaved | — |
+| Notes | Notes only | — |
+| Tasks | Tasks only | Secondary status row: Todo · In Progress · Done · All |
+| Projects | Project cards | — |
+
+### Item Cards (`lib/widgets/library_item_card.dart`)
+- **Note:** title (Fraunces medium), 1-line body snippet, tag chips, relative timestamp
+- **Task:** status checkbox (tappable → cycles `todo → in_progress → done` via `PATCH /api/tasks/:id/status`), title, due date, priority dot (high = red, medium = amber)
+- **Project:** left colour strip matching project colour, title, active task count, milestone progress bar
+
+### Search
+- Tapping 🔍 slides an `AnimatedContainer` search bar into the AppBar
+- Searches title + body across notes and tasks via `GET /api/notes?q=` (respects active filter pill)
+- Dismisses with Escape / back gesture
+
+### FAB
+- Bottom sheet with two large tap targets: "New note" → `NoteEditScreen`, "New task" → `TaskEditScreen`
+
+### New Files
+- `lib/screens/library/library_screen.dart`
+- `lib/widgets/library_item_card.dart`
+
+---
+
+## Quick Capture Queue
+
+The `_QuickCaptureBar` in `app.dart` is updated to support multiple in-flight captures queued sequentially.
+
+### Behaviour
+- Input **never disables** while the worker is active (only disables on offline — existing behaviour)
+- Submitting appends text to the work queue; the worker drains it one item at a time
+- Each completion fires a snackbar (`"Note created: …"`)
+- Queue depth > 0: prefix icon shows a badge `⋯ N`
+- Worker active: a 2dp `LinearProgressIndicator` in indigo animates below the capture bar
+
+### Implementation
+- New `lib/providers/capture_work_queue_provider.dart` — `CaptureWorkQueueNotifier` (in-memory `List<String>` + async drain loop)
+- Separate from the existing `captureQueueProvider` (which handles offline persistence); the two queues are distinct:
+  - **Work queue:** in-memory, drains sequentially while online
+  - **Offline queue:** persisted to SharedPreferences, drained on reconnect
+- Network errors during work queue drain fall through to offline queue (existing logic)
+
+---
+
+## Files Created / Modified Summary
+
+**New:**
+- `lib/core/theme.dart`
+- `lib/screens/briefing/briefing_screen.dart`
+- `lib/screens/briefing/briefing_history_screen.dart`
+- `lib/screens/library/library_screen.dart`
+- `lib/widgets/briefing_digest_card.dart`
+- `lib/widgets/chat_message_bubble.dart`
+- `lib/widgets/library_item_card.dart`
+- `lib/data/api/briefing_api.dart`
+- `lib/data/models/briefing_conversation.dart`
+- `lib/providers/briefing_provider.dart`
+- `lib/providers/capture_work_queue_provider.dart`
+
+**Modified:**
+- `lib/app.dart` — new 3-tab shell, new routes, updated `_QuickCaptureBar`
+- `lib/main.dart` — import `theme.dart`
+- `lib/screens/chat/chat_screen.dart` — extract bubble widget
+- `pubspec.yaml` — add `google_fonts`
+
+**Deleted:**
+- `lib/screens/notes/notes_list_screen.dart`
+- `lib/screens/tasks/tasks_list_screen.dart`
+- `lib/screens/projects/project_list_screen.dart`
+- `lib/screens/chat/conversations_list_screen.dart`
+- `lib/screens/quick_capture/quick_capture_screen.dart`
+
+---
+
+## Out of Scope
+
+- iOS support — Android only, as today
+- Workspace view — web-only feature
+- Graph view — web-only feature
+- Note editing from Library (tap → NoteDetailScreen → edit button, as today)
+- Push notification handling in-app — handled by the OS notification tray