Add initial implementation of comfyui_api_sdk with API models and examples

lib/src/models/models.dart

@@ -0,0 +1,87 @@
+/// Models that represent ComfyUI API responses
+
+/// Represents queue information from ComfyUI
+class QueueInfo {
+  final int queueRunning;
+  final List<Map<String, dynamic>> queue;
+  final Map<String, dynamic> queuePending;
+
+  QueueInfo({
+    required this.queueRunning,
+    required this.queue,
+    required this.queuePending,
+  });
+
+  factory QueueInfo.fromJson(Map<String, dynamic> json) {
+    return QueueInfo(
+      queueRunning: json['queue_running'] as int,
+      queue: List<Map<String, dynamic>>.from(json['queue'] ?? []),
+      queuePending: Map<String, dynamic>.from(json['queue_pending'] ?? {}),
+    );
+  }
+}
+
+/// Represents a prompt execution status
+class PromptExecutionStatus {
+  final String? promptId;
+  final int? number;
+  final String? status;
+  final dynamic error;
+
+  PromptExecutionStatus({
+    this.promptId,
+    this.number,
+    this.status,
+    this.error,
+  });
+
+  factory PromptExecutionStatus.fromJson(Map<String, dynamic> json) {
+    return PromptExecutionStatus(
+      promptId: json['prompt_id'] as String?,
+      number: json['number'] as int?,
+      status: json['status'] as String?,
+      error: json['error'],
+    );
+  }
+}
+
+/// Represents history data
+class HistoryItem {
+  final String promptId;
+  final Map<String, dynamic> prompt;
+  final Map<String, dynamic>? outputs;
+
+  HistoryItem({
+    required this.promptId,
+    required this.prompt,
+    this.outputs,
+  });
+
+  factory HistoryItem.fromJson(Map<String, dynamic> json) {
+    return HistoryItem(
+      promptId: json['prompt_id'] as String,
+      prompt: Map<String, dynamic>.from(json['prompt'] ?? {}),
+      outputs: json['outputs'] != null
+          ? Map<String, dynamic>.from(json['outputs'])
+          : null,
+    );
+  }
+}
+
+/// Represents a progress update received via WebSocket
+class ProgressUpdate {
+  final String type;
+  final Map<String, dynamic> data;
+
+  ProgressUpdate({
+    required this.type,
+    required this.data,
+  });
+
+  factory ProgressUpdate.fromJson(Map<String, dynamic> json) {
+    return ProgressUpdate(
+      type: json['type'] as String,
+      data: Map<String, dynamic>.from(json['data'] ?? {}),
+    );
+  }
+}