Initial commit: Captain Claude Mobile App

- Flutter app with chat and terminal screens
- WebSocket integration for real-time chat
- xterm integration for screen sessions
- Markdown rendering with code blocks
- JWT authentication

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

lib/models/message.dart

@@ -0,0 +1,65 @@
+import 'package:uuid/uuid.dart';
+
+class Message {
+  final String id;
+  final String role; // 'user' or 'assistant'
+  final String content;
+  final DateTime timestamp;
+  final bool isStreaming;
+  final List<String>? attachments;
+
+  Message({
+    String? id,
+    required this.role,
+    required this.content,
+    DateTime? timestamp,
+    this.isStreaming = false,
+    this.attachments,
+  })  : id = id ?? const Uuid().v4(),
+        timestamp = timestamp ?? DateTime.now();
+
+  Message copyWith({
+    String? id,
+    String? role,
+    String? content,
+    DateTime? timestamp,
+    bool? isStreaming,
+    List<String>? attachments,
+  }) {
+    return Message(
+      id: id ?? this.id,
+      role: role ?? this.role,
+      content: content ?? this.content,
+      timestamp: timestamp ?? this.timestamp,
+      isStreaming: isStreaming ?? this.isStreaming,
+      attachments: attachments ?? this.attachments,
+    );
+  }
+
+  factory Message.fromJson(Map<String, dynamic> json) {
+    return Message(
+      id: json['id'],
+      role: json['role'],
+      content: json['content'],
+      timestamp: json['timestamp'] != null
+          ? DateTime.parse(json['timestamp'])
+          : DateTime.now(),
+      attachments: json['attachments'] != null
+          ? List<String>.from(json['attachments'])
+          : null,
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'id': id,
+      'role': role,
+      'content': content,
+      'timestamp': timestamp.toIso8601String(),
+      'attachments': attachments,
+    };
+  }
+
+  bool get isUser => role == 'user';
+  bool get isAssistant => role == 'assistant';
+}

lib/models/session.dart

@@ -0,0 +1,50 @@
+class ScreenSession {
+  final String name;
+  final String pid;
+  final bool attached;
+
+  ScreenSession({
+    required this.name,
+    required this.pid,
+    required this.attached,
+  });
+
+  factory ScreenSession.fromJson(Map<String, dynamic> json) {
+    return ScreenSession(
+      name: json['name'] ?? '',
+      pid: json['pid'] ?? '',
+      attached: json['attached'] ?? false,
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'name': name,
+      'pid': pid,
+      'attached': attached,
+    };
+  }
+}
+
+class Conversation {
+  final String id;
+  final String title;
+  final DateTime createdAt;
+  final int messageCount;
+
+  Conversation({
+    required this.id,
+    required this.title,
+    required this.createdAt,
+    required this.messageCount,
+  });
+
+  factory Conversation.fromJson(Map<String, dynamic> json) {
+    return Conversation(
+      id: json['id'],
+      title: json['title'] ?? 'Untitled',
+      createdAt: DateTime.parse(json['created_at']),
+      messageCount: json['message_count'] ?? 0,
+    );
+  }
+}

lib/models/user.dart

@@ -0,0 +1,29 @@
+class User {
+  final String username;
+  final String token;
+  final DateTime expiresAt;
+
+  User({
+    required this.username,
+    required this.token,
+    required this.expiresAt,
+  });
+
+  bool get isExpired => DateTime.now().isAfter(expiresAt);
+
+  factory User.fromJson(Map<String, dynamic> json) {
+    return User(
+      username: json['username'],
+      token: json['token'],
+      expiresAt: DateTime.parse(json['expires_at']),
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'username': username,
+      'token': token,
+      'expires_at': expiresAt.toIso8601String(),
+    };
+  }
+}