refactor(persona): 结构化特征值 evidence.data → 独立 persona_features.data 列

evidence 语义是"为什么(证据溯源)",塞业务 payload 越界。改用独立 data Json? 列:
- schema: persona_features 加 data Json?(+ migration 20260602054612)
- PersonaFeatureDraft.data 顶层字段(从 evidence.data 移出);evidence 回归只放 factIds
- persona.service 写入 + 序列化透出 data 列
- entitlement extractor 结构化明细写 data 列

本地验证(6857):data 列含 {commercialInsurers/lastCommercialInsuranceAt/...},evidence 只剩 factIds。

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

apps/pac-service/prisma/migrations/20260602054612_add_persona_feature_data/migration.sql

+-- AlterTable
+ALTER TABLE "persona_features" ADD COLUMN     "data" JSONB;

apps/pac-service/prisma/schema.prisma

@@ -602,6 +602,13 @@ model PersonaFeature {
   /// 可选数值评分,用于排序/筛选
   score       Float?
 
+  /// 结构化 payload(可空)— 特征值里"需要被 scorer / UI 结构化消费"的明细。
+  /// 跟 description(人读串)/ score(排序数)分工:这里放机器要 parse 的对象。
+  /// 例:权益身份 { commercialInsurers:[...], lastCommercialInsuranceAt, monthsSinceLastCommercial }。
+  /// 跟 evidence 区分:evidence = 为什么(证据溯源),data = 是什么(结构化特征值)。
+  /// 形状由各 feature 应用层自管(zod);DB 不强约束(db-review §6 JSON 列纪律)。
+  data        Json?
+
   /// 证据引用:{ factIds, agentInvocationIds, ruleIds, promptVersion } —
   /// 任何 persona 都能反查到"为什么得出这个结论"。
   /// 引证 fact 即可,fact 自带 transactionIds 可两跳回溯到原始 transaction。

apps/pac-service/src/modules/persona/features/entitlement-status.feature.ts

@@ -118,16 +118,17 @@ export class EntitlementStatusFeatureExtractor implements FeatureExtractor {
       description: parts.join(';'),
       // score = 商保最近月数(越小越新);仅医保时用医保月数兜底。旗标型,非梯度,scorer 读 data 更精确。
       score: monthsCommercial ?? monthsMedical ?? null,
+      // 结构化特征值 → persona_features.data 列(给 scorer/UI 结构化消费)
+      data: {
+        commercialInsured: hasCommercial,
+        commercialInsurers: insurers, // 阶段2 re-ingest 后才有保司名
+        lastCommercialInsuranceAt: lastCommercialAt ? lastCommercialAt.toISOString() : null,
+        monthsSinceLastCommercial: monthsCommercial,
+        medicalInsured: hasMedical,
+        lastMedicalInsuranceAt: lastMedicalAt ? lastMedicalAt.toISOString() : null,
+      },
       evidence: {
         factIds: [...commercialFactIds, ...medicalFactIds],
-        data: {
-          commercialInsured: hasCommercial,
-          commercialInsurers: insurers, // 阶段2 re-ingest 后才有保司名
-          lastCommercialInsuranceAt: lastCommercialAt ? lastCommercialAt.toISOString() : null,
-          monthsSinceLastCommercial: monthsCommercial,
-          medicalInsured: hasMedical,
-          lastMedicalInsuranceAt: lastMedicalAt ? lastMedicalAt.toISOString() : null,
-        },
       },
     };
   }

apps/pac-service/src/modules/persona/features/feature.interface.ts

@@ -53,13 +53,13 @@ export interface PersonaFeatureDraft {
   key: PersonaFeatureKey;
   description: string;
   score?: number | null;
+  /// 结构化特征值(可空)→ 落 persona_features.data 列。description 人读、score 排序、
+  /// data 给 scorer / UI 结构化消费(如权益身份 insurers / lastInsuranceAt / monthsSinceLast)。
+  data?: Record<string, unknown> | null;
   /// 证据反查 fact + AI 调用;**不存 ruleIds 字符串常量**(版本追溯靠 git + persona.createdAt)
   evidence: {
     factIds: string[];
     agentInvocationIds?: string[];
-    /// 结构化 payload(零迁移路线):description 是人读串、score 是排序数,
-    /// 需要被 scorer / UI 结构化消费的明细放这里(如权益身份 insurers / lastInsuranceAt)。
-    data?: Record<string, unknown>;
   };
 }
 

apps/pac-service/src/modules/persona/persona.service.ts

@@ -220,6 +220,10 @@ export class PersonaService {
                   key: d.key,
                   description: d.description,
                   score: d.score ?? null,
+                  data:
+                    d.data == null
+                      ? undefined // nullable Json 列省略 → NULL
+                      : (d.data as unknown as Prisma.InputJsonValue),
                   evidence: d.evidence as unknown as Prisma.InputJsonValue,
                 })),
               },
@@ -298,6 +302,7 @@ export class PersonaService {
       key: string;
       description: string;
       score: number | null;
+      data: unknown;
       evidence: unknown;
       createdAt: Date;
     }>;
@@ -318,6 +323,7 @@ export class PersonaService {
         key: f.key,
         description: f.description,
         score: f.score,
+        data: (f.data as Record<string, unknown>) ?? null,
         evidence: (f.evidence as Record<string, unknown>) ?? {},
         createdAt: f.createdAt.toISOString(),
       })),