refactor: split terminal models

lib/models/terminal/js_log_data.dart

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+class JsLogData {
+  JsLogData({
+    required this.level,
+    required this.args,
+    this.stack,
+    this.context,
+    this.contextRequestId,
+  });
+
+  final String level; // log | warn | error | fatal
+  final List<String> args;
+  final String? stack;
+  final String? context; // preRequest | postResponse | global
+  final String? contextRequestId;
+}

lib/models/terminal/models.dart

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+export 'network_log_data.dart';
+export 'js_log_data.dart';
+export 'system_log_data.dart';
+export 'terminal_entry.dart';

lib/models/terminal/network_log_data.dart

@@ -0,0 +1,82 @@
+import 'package:apidash/consts.dart';
+import 'package:apidash_core/apidash_core.dart' show APIType, HTTPVerb;
+
+class NetworkLogData {
+  NetworkLogData({
+    required this.phase,
+    required this.apiType,
+    required this.method,
+    required this.url,
+    this.requestHeaders,
+    this.requestBodyPreview,
+    this.responseStatus,
+    this.responseHeaders,
+    this.responseBodyPreview,
+    this.duration,
+    this.isStreaming = false,
+    this.sentAt,
+    this.completedAt,
+    this.errorMessage,
+    List<BodyChunk>? chunks,
+  }) : chunks = chunks ?? <BodyChunk>[];
+
+  final NetworkPhase phase;
+  final APIType apiType;
+  final HTTPVerb method;
+  final String url;
+  final Map<String, String>? requestHeaders;
+  final String? requestBodyPreview;
+  final int? responseStatus;
+  final Map<String, String>? responseHeaders;
+  final String? responseBodyPreview;
+  final Duration? duration;
+  final bool isStreaming;
+  final DateTime? sentAt;
+  final DateTime? completedAt;
+  final String? errorMessage;
+  final List<BodyChunk> chunks;
+
+  NetworkLogData copyWith({
+    NetworkPhase? phase,
+    APIType? apiType,
+    HTTPVerb? method,
+    String? url,
+    Map<String, String>? requestHeaders,
+    String? requestBodyPreview,
+    int? responseStatus,
+    Map<String, String>? responseHeaders,
+    String? responseBodyPreview,
+    Duration? duration,
+    bool? isStreaming,
+    DateTime? sentAt,
+    DateTime? completedAt,
+    String? errorMessage,
+    List<BodyChunk>? chunks,
+  }) {
+    return NetworkLogData(
+      phase: phase ?? this.phase,
+      apiType: apiType ?? this.apiType,
+      method: method ?? this.method,
+      url: url ?? this.url,
+      requestHeaders: requestHeaders ?? this.requestHeaders,
+      requestBodyPreview: requestBodyPreview ?? this.requestBodyPreview,
+      responseStatus: responseStatus ?? this.responseStatus,
+      responseHeaders: responseHeaders ?? this.responseHeaders,
+      responseBodyPreview: responseBodyPreview ?? this.responseBodyPreview,
+      duration: duration ?? this.duration,
+      isStreaming: isStreaming ?? this.isStreaming,
+      sentAt: sentAt ?? this.sentAt,
+      completedAt: completedAt ?? this.completedAt,
+      errorMessage: errorMessage ?? this.errorMessage,
+      chunks: chunks ?? this.chunks,
+    );
+  }
+}
+
+class BodyChunk {
+  BodyChunk({required this.ts, required this.text, required this.sizeBytes});
+
+  final DateTime ts;
+  final String text; // preview text (could be partial)
+  final int sizeBytes;
+}

lib/models/terminal/system_log_data.dart

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+class SystemLogData {
+  SystemLogData({required this.category, required this.message, this.stack});
+  final String category; // ui | provider | io | storage | unknown
+  final String message;
+  final String? stack;
+}

lib/models/terminal/terminal_entry.dart

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+import 'package:apidash/consts.dart';
+import 'network_log_data.dart';
+import 'js_log_data.dart';
+import 'system_log_data.dart';
+
+class TerminalEntry {
+  TerminalEntry({
+    required this.id,
+    required this.ts,
+    required this.source,
+    required this.level,
+    this.requestId,
+    this.correlationId,
+    this.tags = const <String>[],
+    this.network,
+    this.js,
+    this.system,
+  });
+
+  final String id;
+  final DateTime ts;
+  final TerminalSource source;
+  final TerminalLevel level;
+  final String? requestId; // App request id for correlation
+  final String? correlationId; // Additional correlation if any
+  final List<String> tags;
+  final NetworkLogData? network;
+  final JsLogData? js;
+  final SystemLogData? system;
+
+  TerminalEntry copyWith({
+    DateTime? ts,
+    TerminalSource? source,
+    TerminalLevel? level,
+    String? requestId,
+    String? correlationId,
+    List<String>? tags,
+    NetworkLogData? network,
+    JsLogData? js,
+    SystemLogData? system,
+  }) {
+    return TerminalEntry(
+      id: id,
+      ts: ts ?? this.ts,
+      source: source ?? this.source,
+      level: level ?? this.level,
+      requestId: requestId ?? this.requestId,
+      correlationId: correlationId ?? this.correlationId,
+      tags: tags ?? this.tags,
+      network: network ?? this.network,
+      js: js ?? this.js,
+      system: system ?? this.system,
+    );
+  }
+}