feat(risk): 实现AI项目风险评估功能

- 新增RiskAssessmentResult DTO，定义AI风险评估结果结构
- 在RiskService接口和实现中添加assessProjectRisk方法
- RiskServiceImpl中集成ChatClient调用AI进行全面风险评估
- 构建项目数据上下文包含基本信息、任务统计、团队成员、风险数量、进度和预算等
- 解析AI返回结果，存储识别风险至数据库并更新项目风险等级
- RiskController新增接口 /assess/{projectId} 提供REST风评估入口
- 完善日志记录，捕获异常并返回友好错误信息

src/main/java/cn/yinlihupo/service/risk/RiskService.java

@@ -3,6 +3,7 @@ package cn.yinlihupo.service.risk;
 import cn.yinlihupo.common.page.TableDataInfo;
 import cn.yinlihupo.domain.dto.CreateRiskRequest;
 import cn.yinlihupo.domain.dto.CreateWorkOrderRequest;
+import cn.yinlihupo.domain.vo.RiskAssessmentResult;
 import cn.yinlihupo.domain.vo.RiskStatisticsVO;
 import cn.yinlihupo.domain.vo.RiskVO;
 
@@ -84,4 +85,15 @@ public interface RiskService {
      * @return 是否成功
      */
     Boolean batchUpdateStatus(java.util.List<Long> riskIds, String status);
+
+    // ==================== AI 风险评估相关接口 ====================
+
+    /**
+     * 对项目进行AI风险评估并入库
+     * 使用AI能力对项目整体的进度、人员、资金等会影响项目开展的所有因素进行风险评估
+     *
+     * @param projectId 项目ID
+     * @return 风险评估结果（已入库的风险ID列表）
+     */
+    RiskAssessmentResult assessProjectRisk(Long projectId);
 }

src/main/java/cn/yinlihupo/service/risk/impl/RiskServiceImpl.java

@@ -6,14 +6,19 @@ import cn.yinlihupo.common.util.SecurityUtils;
 import cn.yinlihupo.domain.dto.CreateRiskRequest;
 import cn.yinlihupo.domain.dto.CreateWorkOrderRequest;
 import cn.yinlihupo.domain.entity.Project;
+import cn.yinlihupo.domain.entity.ProjectMember;
 import cn.yinlihupo.domain.entity.Risk;
 import cn.yinlihupo.domain.entity.SysUser;
+import cn.yinlihupo.domain.entity.Task;
 import cn.yinlihupo.domain.entity.WorkOrder;
+import cn.yinlihupo.domain.vo.RiskAssessmentResult;
 import cn.yinlihupo.domain.vo.RiskStatisticsVO;
 import cn.yinlihupo.domain.vo.RiskVO;
 import cn.yinlihupo.mapper.ProjectMapper;
+import cn.yinlihupo.mapper.ProjectMemberMapper;
 import cn.yinlihupo.mapper.RiskMapper;
 import cn.yinlihupo.mapper.SysUserMapper;
+import cn.yinlihupo.mapper.TaskMapper;
 import cn.yinlihupo.mapper.WorkOrderMapper;
 import cn.yinlihupo.service.risk.RiskService;
 import cn.yinlihupo.service.risk.WorkOrderService;
@@ -21,6 +26,7 @@ import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
+import org.springframework.ai.chat.client.ChatClient;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
@@ -41,9 +47,95 @@ public class RiskServiceImpl implements RiskService {
 
     private final RiskMapper riskMapper;
     private final ProjectMapper projectMapper;
+    private final ProjectMemberMapper projectMemberMapper;
+    private final TaskMapper taskMapper;
     private final SysUserMapper sysUserMapper;
     private final WorkOrderMapper workOrderMapper;
     private final WorkOrderService workOrderService;
+    private final ChatClient chatClient;
+
+    /**
+     * AI风险评估系统提示词模板
+     */
+    private static final String RISK_ASSESSMENT_SYSTEM_PROMPT = """
+            # 角色
+            
+            你是一个专业的项目风险管理专家，擅长对项目进行全面的风险评估和分析。
+            
+            # 任务
+            
+            根据提供的项目数据，对项目整体进行风险评估，分析以下方面的风险因素：
+            1. 进度风险 - 项目时间节点、里程碑、任务完成情况
+            2. 资源风险 - 人力、物料、设备等资源分配情况
+            3. 预算风险 - 成本控制、预算执行情况
+            4. 质量风险 - 交付物质量、验收标准
+            5. 人员风险 - 团队配置、人员能力、人员流动
+            6. 外部风险 - 政策变化、市场环境、供应商等
+            
+            # 输出格式
+            
+            请严格按照以下JSON格式输出：
+            
+            ```json
+            {
+              "overall_risk_level": "critical/high/medium/low",
+              "overall_risk_score": 75,
+              "assessment_summary": "整体风险评估摘要，说明主要风险点和建议",
+              "risk_areas": [
+                {
+                  "area_name": "schedule/resource/budget/quality/personnel/external",
+                  "risk_level": "critical/high/medium/low",
+                  "risk_score": 80,
+                  "description": "该领域的风险描述",
+                  "key_indicators": [
+                    {
+                      "indicator_name": "指标名称",
+                      "current_value": "当前值",
+                      "target_value": "目标值",
+                      "status": "normal/warning/critical",
+                      "description": "指标说明"
+                    }
+                  ]
+                }
+              ],
+              "identified_risks": [
+                {
+                  "risk_name": "风险名称",
+                  "category": "technical/schedule/cost/quality/resource/external/personnel",
+                  "description": "风险详细描述",
+                  "probability": 60,
+                  "impact": 4,
+                  "risk_level": "high",
+                  "impact_scope": "影响范围描述",
+                  "trigger_condition": "触发条件",
+                  "mitigation_plan": "缓解措施",
+                  "contingency_plan": "应急计划",
+                  "priority": "critical/high/medium/low"
+                }
+              ],
+              "recommendations": [
+                {
+                  "title": "建议标题",
+                  "recommendation_type": "preventive/mitigative/contingent",
+                  "content": "具体建议内容",
+                  "priority": "high",
+                  "expected_effect": "预期效果",
+                  "suggested_timeline": "建议实施时间",
+                  "responsible_party": "责任方"
+                }
+              ]
+            }
+            ```
+            
+            # 注意事项
+            
+            1. probability(发生概率) 范围 0-100
+            2. impact(影响程度) 范围 1-5
+            3. 风险得分计算：probability * impact / 5 * 100，得出0-100的分数
+            4. 风险等级判定：score>=80为critical，60<=score<80为high，40<=score<60为medium，score<40为low
+            5. 识别的风险应该具体且可操作，不要泛泛而谈
+            6. 建议要结合项目实际情况，有针对性
+            """;
 
     @Override
     @Transactional(rollbackFor = Exception.class)
@@ -199,12 +291,8 @@ public class RiskServiceImpl implements RiskService {
                     .like(Risk::getDescription, keyword));
         }
 
-        // 按风险等级和得分排序
-        wrapper.orderByAsc(
-                r -> "critical".equals(r.getRiskLevel()) ? 1 :
-                        "high".equals(r.getRiskLevel()) ? 2 :
-                        "medium".equals(r.getRiskLevel()) ? 3 : 4
-        ).orderByDesc(Risk::getRiskScore);
+        // 按风险等级和得分排序（使用原生SQL避免Lambda表达式问题）
+        wrapper.last("ORDER BY CASE risk_level WHEN 'critical' THEN 1 WHEN 'high' THEN 2 WHEN 'medium' THEN 3 ELSE 4 END ASC, risk_score DESC");
 
         Page<Risk> riskPage = riskMapper.selectPage(page, wrapper);
 
@@ -413,4 +501,217 @@ public class RiskServiceImpl implements RiskService {
 
         return vo;
     }
+
+    // ==================== AI 风险评估相关实现 ====================
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public RiskAssessmentResult assessProjectRisk(Long projectId) {
+        log.info("开始AI风险评估, projectId: {}", projectId);
+
+        // 1. 验证项目存在
+        Project project = projectMapper.selectById(projectId);
+        if (project == null || project.getDeleted() == 1) {
+            throw new RuntimeException("项目不存在");
+        }
+
+        // 2. 构建项目数据上下文
+        String projectDataContext = buildProjectDataContext(projectId);
+
+        // 3. 构建用户提示词
+        String userPrompt = """
+                请根据以下项目数据，进行全面的风险评估分析：
+                
+                %s
+                
+                请严格按照系统提示词中的JSON格式输出评估结果，确保识别的风险具体且可操作。
+                """.formatted(projectDataContext);
+
+        // 4. 调用AI进行风险评估
+        log.info("调用AI进行风险评估...");
+        RiskAssessmentResult result = chatClient.prompt()
+                .system(RISK_ASSESSMENT_SYSTEM_PROMPT)
+                .user(userPrompt)
+                .call()
+                .entity(RiskAssessmentResult.class);
+
+        // 5. 设置项目信息
+        result.setProjectId(projectId);
+        result.setProjectName(project.getProjectName());
+        result.setAssessmentDate(LocalDate.now());
+
+        // 6. 将识别的风险入库
+        if (result.getIdentifiedRisks() != null && !result.getIdentifiedRisks().isEmpty()) {
+            List<Long> savedRiskIds = saveIdentifiedRisks(result.getIdentifiedRisks(), projectId);
+            log.info("已保存 {} 个识别的风险", savedRiskIds.size());
+        }
+
+        // 7. 更新项目的风险等级
+        if (result.getOverallRiskLevel() != null) {
+            project.setRiskLevel(result.getOverallRiskLevel());
+            projectMapper.updateById(project);
+        }
+
+        log.info("AI风险评估完成, overallRiskLevel: {}", result.getOverallRiskLevel());
+        return result;
+    }
+
+    /**
+     * 构建项目数据上下文
+     */
+    private String buildProjectDataContext(Long projectId) {
+        StringBuilder sb = new StringBuilder();
+
+        // 项目基本信息
+        Project project = projectMapper.selectById(projectId);
+        sb.append("## 项目基本信息\n");
+        sb.append(String.format("- 项目名称: %s\n", project.getProjectName()));
+        sb.append(String.format("- 项目类型: %s\n", project.getProjectType()));
+        sb.append(String.format("- 项目状态: %s\n", project.getStatus()));
+        sb.append(String.format("- 计划开始日期: %s\n", project.getPlanStartDate()));
+        sb.append(String.format("- 计划结束日期: %s\n", project.getPlanEndDate()));
+        sb.append(String.format("- 实际开始日期: %s\n", project.getActualStartDate()));
+        sb.append(String.format("- 当前进度: %s%%\n", project.getProgress()));
+        sb.append(String.format("- 项目预算: %s %s\n", project.getBudget(), project.getCurrency()));
+        sb.append(String.format("- 已花费成本: %s %s\n", project.getCost(), project.getCurrency()));
+        sb.append(String.format("- 优先级: %s\n", project.getPriority()));
+        sb.append("\n");
+
+        // 使用 MyBatis 查询关联数据
+        // 查询任务统计
+        long taskCount = taskMapper.selectCount(
+                new LambdaQueryWrapper<Task>()
+                        .eq(Task::getProjectId, projectId)
+                        .eq(Task::getDeleted, 0)
+        );
+        long completedTaskCount = taskMapper.selectCount(
+                new LambdaQueryWrapper<Task>()
+                        .eq(Task::getProjectId, projectId)
+                        .eq(Task::getDeleted, 0)
+                        .eq(Task::getStatus, "completed")
+        );
+        sb.append("## 任务统计\n");
+        sb.append(String.format("- 任务总数: %d\n", taskCount));
+        sb.append(String.format("- 已完成任务: %d\n", completedTaskCount));
+        sb.append(String.format("- 任务完成率: %.1f%%\n", taskCount > 0 ? (completedTaskCount * 100.0 / taskCount) : 0));
+        sb.append("\n");
+
+        // 查询成员数量
+        long memberCount = projectMemberMapper.selectCount(
+                new LambdaQueryWrapper<ProjectMember>()
+                        .eq(ProjectMember::getProjectId, projectId)
+                        .eq(ProjectMember::getDeleted, 0)
+        );
+        sb.append("## 团队成员\n");
+        sb.append(String.format("- 团队人数: %d\n", memberCount));
+        sb.append("\n");
+
+        // 查询已识别风险数量
+        long existingRiskCount = riskMapper.selectCount(
+                new LambdaQueryWrapper<Risk>()
+                        .eq(Risk::getProjectId, projectId)
+                        .eq(Risk::getDeleted, 0)
+        );
+        long highRiskCount = riskMapper.selectCount(
+                new LambdaQueryWrapper<Risk>()
+                        .eq(Risk::getProjectId, projectId)
+                        .eq(Risk::getDeleted, 0)
+                        .in(Risk::getRiskLevel, "critical", "high")
+        );
+        sb.append("## 已识别风险\n");
+        sb.append(String.format("- 已识别风险数: %d\n", existingRiskCount));
+        sb.append(String.format("- 高风险数量: %d\n", highRiskCount));
+        sb.append("\n");
+
+        // 计算项目进度偏差
+        if (project.getPlanEndDate() != null && project.getPlanStartDate() != null) {
+            LocalDate now = LocalDate.now();
+            long totalDays = java.time.temporal.ChronoUnit.DAYS.between(project.getPlanStartDate(), project.getPlanEndDate());
+            long elapsedDays = java.time.temporal.ChronoUnit.DAYS.between(project.getPlanStartDate(), now);
+            elapsedDays = Math.max(0, Math.min(elapsedDays, totalDays));
+            double expectedProgress = totalDays > 0 ? (elapsedDays * 100.0 / totalDays) : 0;
+            int progressDeviation = project.getProgress() != null ? (int)(project.getProgress() - expectedProgress) : 0;
+            
+            sb.append("## 进度分析\n");
+            sb.append(String.format("- 计划工期: %d 天\n", totalDays));
+            sb.append(String.format("- 已过时间: %d 天\n", elapsedDays));
+            sb.append(String.format("- 预期进度: %.1f%%\n", expectedProgress));
+            sb.append(String.format("- 实际进度: %d%%\n", project.getProgress() != null ? project.getProgress() : 0));
+            sb.append(String.format("- 进度偏差: %+.1f%%\n", (double) progressDeviation));
+            sb.append("\n");
+        }
+
+        // 预算使用情况
+        if (project.getBudget() != null && project.getBudget().compareTo(BigDecimal.ZERO) > 0) {
+            BigDecimal cost = project.getCost() != null ? project.getCost() : BigDecimal.ZERO;
+            double budgetUsage = cost.multiply(BigDecimal.valueOf(100))
+                    .divide(project.getBudget(), 2, RoundingMode.HALF_UP).doubleValue();
+            sb.append("## 预算使用\n");
+            sb.append(String.format("- 预算使用率: %.1f%%\n", budgetUsage));
+            sb.append(String.format("- 剩余预算: %s %s\n", 
+                    project.getBudget().subtract(cost), project.getCurrency()));
+            sb.append("\n");
+        }
+
+        return sb.toString();
+    }
+
+    /**
+     * 保存识别的风险到数据库
+     */
+    private List<Long> saveIdentifiedRisks(List<RiskAssessmentResult.IdentifiedRisk> risks, Long projectId) {
+        List<Long> savedIds = new ArrayList<>();
+        LocalDateTime now = LocalDateTime.now();
+
+        for (RiskAssessmentResult.IdentifiedRisk riskInfo : risks) {
+            Risk risk = new Risk();
+            risk.setProjectId(projectId);
+            risk.setRiskCode(generateRiskCode());
+            risk.setRiskName(riskInfo.getRiskName());
+            risk.setCategory(riskInfo.getCategory() != null ? riskInfo.getCategory() : "other");
+            risk.setDescription(riskInfo.getDescription());
+            risk.setRiskSource("ai_detection");
+            
+            if (riskInfo.getProbability() != null) {
+                risk.setProbability(BigDecimal.valueOf(riskInfo.getProbability()));
+            }
+            if (riskInfo.getImpact() != null) {
+                risk.setImpact(BigDecimal.valueOf(riskInfo.getImpact()));
+            }
+            
+            // 计算风险得分
+            if (risk.getProbability() != null && risk.getImpact() != null) {
+                BigDecimal score = risk.getProbability()
+                        .multiply(risk.getImpact())
+                        .divide(BigDecimal.valueOf(100), 2, RoundingMode.HALF_UP);
+                risk.setRiskScore(score);
+            }
+            
+            // 设置风险等级
+            if (riskInfo.getRiskLevel() != null) {
+                risk.setRiskLevel(riskInfo.getRiskLevel());
+            } else {
+                risk.setRiskLevel(calculateRiskLevel(riskInfo.getProbability(), riskInfo.getImpact()));
+            }
+            
+            risk.setMitigationPlan(riskInfo.getMitigationPlan());
+            risk.setContingencyPlan(riskInfo.getContingencyPlan());
+            risk.setTriggerCondition(riskInfo.getTriggerCondition());
+            risk.setStatus("identified");
+            risk.setDiscoverTime(now);
+            
+            // 存储 AI 分析结果
+            Map<String, Object> aiAnalysis = new HashMap<>();
+            aiAnalysis.put("impact_scope", riskInfo.getImpactScope());
+            aiAnalysis.put("priority", riskInfo.getPriority());
+            aiAnalysis.put("assessment_date", LocalDate.now().toString());
+            risk.setAiAnalysis(aiAnalysis);
+            
+            riskMapper.insert(risk);
+            savedIds.add(risk.getId());
+            log.debug("保存风险: {}, ID: {}", risk.getRiskName(), risk.getId());
+        }
+
+        return savedIds;
+    }
 }