fix(claim): align risk advice with expense rows

server/src/app/services/expense_claim_platform_risk.py

@@ -427,10 +427,13 @@ class ExpenseClaimPlatformRiskMixin:
             )
             if result is None:
                 return None
-            return self._build_platform_risk_flag(
-                manifest,
-                message=str(result.get("message") or "自然语言风险规则命中。"),
-                evidence=result.get("evidence") if isinstance(result.get("evidence"), dict) else {},
+            return self._with_related_item_ids(
+                self._build_platform_risk_flag(
+                    manifest,
+                    message=str(result.get("message") or "自然语言风险规则命中。"),
+                    evidence=result.get("evidence") if isinstance(result.get("evidence"), dict) else {},
+                ),
+                self._context_item_ids(contexts),
             )
         return None
 
@@ -517,10 +520,13 @@ class ExpenseClaimPlatformRiskMixin:
 
         if not mismatches:
             return None
-        return self._build_platform_risk_flag(
-            manifest,
-            message="；".join(mismatches[:3]) + "，与当前费用场景不匹配。",
-            evidence={"mismatches": mismatches[:5]},
+        return self._with_related_item_ids(
+            self._build_platform_risk_flag(
+                manifest,
+                message="；".join(mismatches[:3]) + "，与当前费用场景不匹配。",
+                evidence={"mismatches": mismatches[:5]},
+            ),
+            self._context_item_ids(contexts),
         )
 
     def _evaluate_location_consistency_risk(
@@ -549,13 +555,16 @@ class ExpenseClaimPlatformRiskMixin:
             return None
         declared_text = "、".join(declared_cities)
         evidence_text = "、".join(evidence_cities[:5])
-        return self._build_platform_risk_flag(
-            manifest,
-            message=(
-                f"申报地点 {declared_text} 与票据识别地点 {evidence_text} 不一致，"
-                "建议补充异地说明或更换附件。"
+        return self._with_related_item_ids(
+            self._build_platform_risk_flag(
+                manifest,
+                message=(
+                    f"申报地点 {declared_text} 与票据识别地点 {evidence_text} 不一致，"
+                    "建议补充异地说明或更换附件。"
+                ),
+                evidence={"declared_cities": declared_cities, "evidence_cities": evidence_cities},
             ),
-            evidence={"declared_cities": declared_cities, "evidence_cities": evidence_cities},
+            self._context_item_ids(contexts),
         )
 
     def _evaluate_duplicate_invoice_risk(
@@ -827,10 +836,13 @@ class ExpenseClaimPlatformRiskMixin:
         reason_corpus = self._build_travel_reason_corpus(claim)
         if self._text_contains_keywords(reason_corpus, policy.route_exception_keywords):
             return None
-        return self._build_platform_risk_flag(
-            manifest,
-            message=f"本次报销识别到多城市行程（{'、'.join(cities[:5])}），但事由中未说明中转、多地拜访或改签原因。",
-            evidence={"cities": cities[:8]},
+        return self._with_related_item_ids(
+            self._build_platform_risk_flag(
+                manifest,
+                message=f"本次报销识别到多城市行程（{'、'.join(cities[:5])}），但事由中未说明中转、多地拜访或改签原因。",
+                evidence={"cities": cities[:8]},
+            ),
+            self._context_item_ids(contexts),
         )
 
     def _build_platform_risk_flag(
@@ -847,6 +859,30 @@ class ExpenseClaimPlatformRiskMixin:
             default_business_stage=self._DEFAULT_RISK_BUSINESS_STAGE,
         )
 
+    @staticmethod
+    def _context_item_ids(contexts: list[dict[str, Any]]) -> list[str]:
+        item_ids: list[str] = []
+        seen: set[str] = set()
+        for context in list(contexts or []):
+            item = context.get("item") if isinstance(context, dict) else None
+            item_id = str(getattr(item, "id", "") or "").strip()
+            if item_id and item_id not in seen:
+                seen.add(item_id)
+                item_ids.append(item_id)
+        return item_ids
+
+    @staticmethod
+    def _with_related_item_ids(flag: dict[str, Any], item_ids: list[str]) -> dict[str, Any]:
+        normalized_item_ids = list(
+            dict.fromkeys(str(item_id or "").strip() for item_id in list(item_ids or []) if str(item_id or "").strip())
+        )
+        if not normalized_item_ids:
+            return flag
+        flag["item_ids"] = normalized_item_ids
+        if len(normalized_item_ids) == 1:
+            flag["item_id"] = normalized_item_ids[0]
+        return flag
+
     @staticmethod
     def _count_values(values: list[str]) -> dict[str, int]:
         counts: dict[str, int] = {}