Initial commit: Fabled Android app

Flutter Android client for FabledAssistant with:
- Session-cookie auth via persistent cookie jar (Dio + cookie_jar)
- OAuth/SSO login via in-app WebView (flutter_inappwebview)
- Notes: list, detail (markdown render), create/edit
- Tasks: list with status tabs, create/edit with priority
- Chat: SSE streaming bubbles, conversation management
- Quick Capture FAB for rapid note/task creation
- Settings screen (change server URL, logout)
- Android home screen widget → opens chat
- Riverpod state management, go_router navigation

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

lib/data/models/conversation.dart

@@ -0,0 +1,20 @@
+class Conversation {
+  final int id;
+  final String title;
+  final DateTime createdAt;
+  final DateTime updatedAt;
+
+  const Conversation({
+    required this.id,
+    required this.title,
+    required this.createdAt,
+    required this.updatedAt,
+  });
+
+  factory Conversation.fromJson(Map<String, dynamic> json) => Conversation(
+        id: json['id'] as int,
+        title: json['title'] as String,
+        createdAt: DateTime.parse(json['created_at'] as String),
+        updatedAt: DateTime.parse(json['updated_at'] as String),
+      );
+}

lib/data/models/message.dart

@@ -0,0 +1,39 @@
+enum MessageRole { user, assistant }
+
+class Message {
+  final int? id;
+  final int conversationId;
+  final MessageRole role;
+  final String content;
+  final String status; // "complete" | "generating"
+  final DateTime? createdAt;
+
+  const Message({
+    this.id,
+    required this.conversationId,
+    required this.role,
+    required this.content,
+    this.status = 'complete',
+    this.createdAt,
+  });
+
+  factory Message.fromJson(Map<String, dynamic> json) => Message(
+        id: json['id'] as int?,
+        conversationId: json['conversation_id'] as int,
+        role: json['role'] == 'user' ? MessageRole.user : MessageRole.assistant,
+        content: json['content'] as String,
+        status: json['status'] as String? ?? 'complete',
+        createdAt: json['created_at'] != null
+            ? DateTime.parse(json['created_at'] as String)
+            : null,
+      );
+
+  Message copyWith({String? content, String? status}) => Message(
+        id: id,
+        conversationId: conversationId,
+        role: role,
+        content: content ?? this.content,
+        status: status ?? this.status,
+        createdAt: createdAt,
+      );
+}

lib/data/models/note.dart

@@ -0,0 +1,36 @@
+class Note {
+  final int id;
+  final String title;
+  final String body;
+  final DateTime createdAt;
+  final DateTime updatedAt;
+
+  const Note({
+    required this.id,
+    required this.title,
+    required this.body,
+    required this.createdAt,
+    required this.updatedAt,
+  });
+
+  factory Note.fromJson(Map<String, dynamic> json) => Note(
+        id: json['id'] as int,
+        title: json['title'] as String? ?? '',
+        body: json['body'] as String? ?? '',
+        createdAt: DateTime.parse(json['created_at'] as String),
+        updatedAt: DateTime.parse(json['updated_at'] as String),
+      );
+
+  Map<String, dynamic> toJson() => {
+        'title': title,
+        'body': body,
+      };
+
+  Note copyWith({String? title, String? body}) => Note(
+        id: id,
+        title: title ?? this.title,
+        body: body ?? this.body,
+        createdAt: createdAt,
+        updatedAt: updatedAt,
+      );
+}

lib/data/models/task.dart

@@ -0,0 +1,107 @@
+enum TaskStatus { todo, inProgress, done }
+
+enum TaskPriority { none, low, medium, high }
+
+extension TaskStatusExtension on TaskStatus {
+  String get value => switch (this) {
+        TaskStatus.todo => 'todo',
+        TaskStatus.inProgress => 'in_progress',
+        TaskStatus.done => 'done',
+      };
+
+  String get label => switch (this) {
+        TaskStatus.todo => 'To Do',
+        TaskStatus.inProgress => 'In Progress',
+        TaskStatus.done => 'Done',
+      };
+
+  static TaskStatus fromString(String? s) => switch (s) {
+        'in_progress' => TaskStatus.inProgress,
+        'done' => TaskStatus.done,
+        _ => TaskStatus.todo,
+      };
+}
+
+extension TaskPriorityExtension on TaskPriority {
+  String get value => switch (this) {
+        TaskPriority.none => 'none',
+        TaskPriority.low => 'low',
+        TaskPriority.medium => 'medium',
+        TaskPriority.high => 'high',
+      };
+
+  String get label => switch (this) {
+        TaskPriority.none => 'None',
+        TaskPriority.low => 'Low',
+        TaskPriority.medium => 'Medium',
+        TaskPriority.high => 'High',
+      };
+
+  static TaskPriority fromString(String? s) => switch (s) {
+        'high' => TaskPriority.high,
+        'medium' => TaskPriority.medium,
+        'low' => TaskPriority.low,
+        _ => TaskPriority.none,
+      };
+}
+
+class Task {
+  final int id;
+  final String title;
+  final String? description;
+  final TaskStatus status;
+  final TaskPriority priority;
+  final DateTime? dueDate;
+  final DateTime createdAt;
+  final DateTime updatedAt;
+
+  const Task({
+    required this.id,
+    required this.title,
+    this.description,
+    required this.status,
+    required this.priority,
+    this.dueDate,
+    required this.createdAt,
+    required this.updatedAt,
+  });
+
+  factory Task.fromJson(Map<String, dynamic> json) => Task(
+        id: json['id'] as int,
+        title: json['title'] as String? ?? '',
+        description: json['body'] as String?,
+        status: TaskStatusExtension.fromString(json['status'] as String?),
+        priority: TaskPriorityExtension.fromString(json['priority'] as String?),
+        dueDate: json['due_date'] != null
+            ? DateTime.parse(json['due_date'] as String)
+            : null,
+        createdAt: DateTime.parse(json['created_at'] as String),
+        updatedAt: DateTime.parse(json['updated_at'] as String),
+      );
+
+  Map<String, dynamic> toJson() => {
+        'title': title,
+        'body': description,
+        'status': status.value,
+        'priority': priority.value,
+        'due_date': dueDate?.toIso8601String(),
+      };
+
+  Task copyWith({
+    String? title,
+    String? description,
+    TaskStatus? status,
+    TaskPriority? priority,
+    DateTime? dueDate,
+  }) =>
+      Task(
+        id: id,
+        title: title ?? this.title,
+        description: description ?? this.description,
+        status: status ?? this.status,
+        priority: priority ?? this.priority,
+        dueDate: dueDate ?? this.dueDate,
+        createdAt: createdAt,
+        updatedAt: updatedAt,
+      );
+}