feat(divination): 重构手动起卦教程，支持三硬币交互选择

apps/lib/features/divination/data/services/divination_run_service.dart

@@ -33,7 +33,6 @@ class DivinationRunService {
 
     DerivedDivinationData? derived;
     String signLevel = '';
-    String summary = '';
     List<String> conclusion = const <String>[];
     List<String> focusPoints = const <String>[];
     List<String> advice = const <String>[];
@@ -64,7 +63,6 @@ class DivinationRunService {
       }
       if (type == 'TEXT_MESSAGE_END') {
         signLevel = _requiredString(event, 'sign_level');
-        summary = _requiredString(event, 'summary');
         conclusion = _requiredStringList(event, 'conclusion');
         focusPoints = _requiredStringList(event, 'focus_points');
         advice = _requiredStringList(event, 'advice');
@@ -107,7 +105,6 @@ class DivinationRunService {
     return DivinationRunAggregate(
       derived: derived,
       signLevel: signLevel,
-      summary: summary,
       conclusion: conclusion,
       focusPoints: focusPoints,
       advice: advice,