fix: resolve ClaudeModule DI crash + historical QR code display bug

1. ClaudeModule missing ConversationORM in TypeOrmModule.forFeature —
   ImmigrationToolsService now depends on ConversationORMRepository
   (added in query_user_profile), but ClaudeModule only had TokenUsageORM.
   Fix: add ConversationORM to ClaudeModule's TypeORM imports.

2. Historical messages show "支付创建失败" for payment QR codes —
   toolCall.result is stored as JSON string in DB metadata JSONB.
   Live streaming (useChat.ts) parses it correctly, but REST API
   load (chatStore.ts → MessageBubble.tsx) does not.
   Fix: normalize toolCall.result in ToolCallResult component —
   JSON.parse if string, pass through if already object.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/services/conversation-service/src/infrastructure/claude/claude.module.ts

@@ -7,6 +7,7 @@ import { ImmigrationToolsService } from './tools/immigration-tools.service';
 import { TokenUsageService } from './token-usage.service';
 import { StrategyEngineService } from './strategy/strategy-engine.service';
 import { TokenUsageORM } from '../database/postgres/entities/token-usage.orm';
+import { ConversationORM } from '../database/postgres/entities/conversation.orm';
 import { KnowledgeModule } from '../knowledge/knowledge.module';
 import { AgentsModule } from '../agents/agents.module';
 
@@ -16,7 +17,7 @@ import { AgentsModule } from '../agents/agents.module';
     ConfigModule,
     KnowledgeModule,
     AgentsModule,
-    TypeOrmModule.forFeature([TokenUsageORM]),
+    TypeOrmModule.forFeature([TokenUsageORM, ConversationORM]),
   ],
   providers: [
     ClaudeAgentService,

packages/web-client/src/features/chat/presentation/components/MessageBubble.tsx

@@ -188,10 +188,19 @@ function AttachmentPreview({
 }
 
 function ToolCallResult({
-  toolCall,
+  toolCall: rawToolCall,
 }: {
   toolCall: { name: string; result: unknown };
 }) {
+  // Normalize: historical messages store toolCall.result as JSON string in DB
+  // Live streaming already parses it, but REST API load does not
+  const toolCall = {
+    ...rawToolCall,
+    result: typeof rawToolCall.result === 'string'
+      ? (() => { try { return JSON.parse(rawToolCall.result as string); } catch { return rawToolCall.result; } })()
+      : rawToolCall.result,
+  };
+
   if (toolCall.name === 'generate_payment') {
     const result = toolCall.result as {
       success?: boolean;