docs: 更新协议文档，删除废弃计划文档

- 更新 http-error-codes, user-points-chat-data-protocol
- 更新 divination-run-protocol, profile-protocol
- 删除废弃的后端和前端设计计划文档

apps/lib/features/divination/data/models/divination_result.dart

@@ -2,6 +2,7 @@ import 'divination_params.dart';
 
 class DivinationResultData {
   const DivinationResultData({
+    this.threadId,
     required this.params,
     required this.binaryCode,
     required this.changedBinaryCode,
@@ -22,6 +23,7 @@ class DivinationResultData {
   });
 
   final DivinationParams params;
+  final String? threadId;
   final String binaryCode;
   final String changedBinaryCode;
   final String guaName;
@@ -44,6 +46,7 @@ class DivinationResultData {
   Map<String, dynamic> toJson() {
     return <String, dynamic>{
       'params': params.toPayload(),
+      'threadId': threadId,
       'binaryCode': binaryCode,
       'changedBinaryCode': changedBinaryCode,
       'guaName': guaName,
@@ -81,6 +84,7 @@ class DivinationResultData {
 
     return DivinationResultData(
       params: DivinationParams.fromPayload(paramsRaw),
+      threadId: json['threadId'] as String?,
       binaryCode: _requiredString(json, 'binaryCode'),
       changedBinaryCode: _requiredString(json, 'changedBinaryCode'),
       guaName: _requiredString(json, 'guaName'),