fix(tools): 修复 coordinator-tools 与 immigration-tools 之间的 input_schema 不一致

## 问题

全链路检查发现 coordinator-tools.ts（Claude 实际使用的工具定义）与
immigration-tools.service.ts（实际执行器）之间有 4 处 input_schema 不一致，
会导致 Claude 发送的参数无法被正确解析。

## 修复

### check_off_topic
- coordinator 发 `query`，handler 读 `question`
- Fix: handler 同时支持 `query` 和 `question` 两个字段名

### collect_assessment_info
- coordinator 发 `{ userId, field, value }`（单字段模式）
- handler 读 `{ category, age, education, ... }`（批量模式）
- Fix: handler 同时支持两种输入格式

### generate_payment
- coordinator 旧 schema: `{ userId, serviceType, amount, description }`
- handler 需要: `{ serviceType, category, paymentMethod }`
- Fix: 更新 coordinator schema 为 `{ serviceType, category, paymentMethod }`
  - serviceType enum 改为 ASSESSMENT/CONSULTATION/DOCUMENT_REVIEW（匹配 payment-service）
  - 添加 category enum 和 paymentMethod enum
  - 移除 userId（从 context 获取）和 amount（由 payment-service 定价）

### save_user_memory
- coordinator 旧 schema 多余 `userId`（handler 用 context.userId）
- coordinator 发 `importance` 但 handler 不读
- handler 支持 `category` 但 coordinator 未定义
- Fix: coordinator schema 移除 userId，移除 importance，添加 category

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

packages/services/conversation-service/src/infrastructure/agents/tools/coordinator-tools.ts

@@ -298,23 +298,24 @@ export const DIRECT_TOOLS: ToolDefinition[] = [
     name: 'save_user_memory',
     description:
       '直接保存用户信息到长期记忆。' +
-      '用于保存关键信息，无需启动完整的记忆管理 Agent。',
+      '用于保存关键信息，无需启动完整的记忆管理 Agent。' +
+      'userId 不需要传，系统自动获取。',
     input_schema: {
       type: 'object',
       properties: {
-        userId: { type: 'string', description: '用户 ID' },
         memoryType: {
           type: 'string',
           enum: ['FACT', 'PREFERENCE', 'INTENT'],
-          description: '记忆类型',
+          description: '记忆类型：FACT-用户事实，PREFERENCE-偏好，INTENT-意图',
         },
-        content: { type: 'string', description: '记忆内容' },
-        importance: {
-          type: 'number',
-          description: '重要程度 1-10',
+        content: { type: 'string', description: '要记住的内容' },
+        category: {
+          type: 'string',
+          enum: ['QMAS', 'GEP', 'IANG', 'TTPS', 'CIES', 'TECHTAS'],
+          description: '相关移民类别（可选）',
         },
       },
-      required: ['userId', 'memoryType', 'content'],
+      required: ['memoryType', 'content'],
     },
     isConcurrencySafe: false,
   },
@@ -346,20 +347,28 @@ export const DIRECT_TOOLS: ToolDefinition[] = [
   {
     name: 'generate_payment',
     description:
-      '生成支付链接。仅在用户明确表示要付费或预约服务时使用。',
+      '生成支付二维码。仅在用户明确表示要付费或预约服务时使用。' +
+      '需要确认用户选择的服务类别和支付方式后调用。',
     input_schema: {
       type: 'object',
       properties: {
-        userId: { type: 'string', description: '用户 ID' },
         serviceType: {
           type: 'string',
-          enum: ['assessment', 'consultation', 'full_service'],
+          enum: ['ASSESSMENT', 'CONSULTATION', 'DOCUMENT_REVIEW'],
           description: '服务类型',
         },
-        amount: { type: 'number', description: '金额（HKD）' },
-        description: { type: 'string', description: '服务描述' },
+        category: {
+          type: 'string',
+          enum: ['QMAS', 'GEP', 'IANG', 'TTPS', 'CIES', 'TECHTAS'],
+          description: '移民类别',
+        },
+        paymentMethod: {
+          type: 'string',
+          enum: ['ALIPAY', 'WECHAT', 'CREDIT_CARD'],
+          description: '支付方式（支付宝、微信、信用卡）',
+        },
       },
-      required: ['userId', 'serviceType'],
+      required: ['serviceType', 'category', 'paymentMethod'],
     },
     isConcurrencySafe: false,
   },

packages/services/conversation-service/src/infrastructure/claude/tools/immigration-tools.service.ts

@@ -427,7 +427,8 @@ export class ImmigrationToolsService {
    * Check if question is off-topic - 调用 knowledge-service API
    */
   private async checkOffTopic(input: Record<string, unknown>): Promise<unknown> {
-    const { question } = input as { question: string };
+    // coordinator-tools.ts sends `query`, legacy getTools() sent `question`
+    const question = (input.query as string) || (input.question as string) || '';
 
     console.log(`[Tool:check_off_topic] Checking: "${question}"`);
 
@@ -456,19 +457,22 @@ export class ImmigrationToolsService {
     input: Record<string, unknown>,
     context: ConversationContext,
   ): Promise<unknown> {
-    const info = input as {
-      category: string;
-      age?: number;
-      education?: string;
-      university?: string;
-      yearsOfExperience?: number;
-      currentJobTitle?: string;
-      industry?: string;
-      annualIncome?: number;
-      hasHKEmployer?: boolean;
-    };
+    // coordinator-tools.ts sends { userId, field, value } (single-field mode)
+    // Legacy getTools() sent { category, age, education, ... } (batch mode)
+    // Support both formats
+    let info: Record<string, unknown>;
 
-    console.log(`[Tool:collect_assessment_info] User ${context.userId} - Category: ${info.category}`);
+    if (input.field && input.value) {
+      // Single-field mode from coordinator-tools.ts
+      info = { [input.field as string]: input.value };
+    } else {
+      // Batch mode from legacy getTools()
+      const { userId: _userId, ...rest } = input;
+      info = rest;
+    }
+
+    const category = (info.category as string) || '';
+    console.log(`[Tool:collect_assessment_info] User ${context.userId} - Fields: ${Object.keys(info).join(', ')}`);
 
     // 保存收集到的信息到用户记忆
     const memoryContent = Object.entries(info)
@@ -482,7 +486,7 @@ export class ImmigrationToolsService {
         memoryType: 'FACT',
         content: `用户评估信息 - ${memoryContent}`,
         sourceConversationId: context.conversationId,
-        relatedCategory: info.category,
+        relatedCategory: category,
         importance: 80,
       });
     }