feat: 新增预算中心本体与风险规则评分回填

后端新增预算本体解析模块和风险规则评分回填服务，优化规则
生成本体对齐和提示词构建，增强费用类型关键词和本体验证，
完善报销查询和审计接口，前端预算中心页面增加对话框和本
体工具函数，重构审计页面元数据和视图模型，补充单元测试。

server/src/app/services/risk_rule_generation_prompt.py

@@ -8,6 +8,8 @@ def build_risk_rule_compiler_messages(
     *,
     domain: str,
     domain_label: str,
+    business_stage: str,
+    business_stage_label: str,
     expense_category: str | None,
     expense_category_label: str,
     natural_language: str,
@@ -74,6 +76,9 @@ def build_risk_rule_compiler_messages(
     }
     guardrails = [
         "只能输出 JSON 对象，不能输出 Markdown 或解释。",
+        "必须区分业务环节：费用申请是事前风控，费用报销是事后核验；不要把二者的字段和流程语义混用。",
+        "费用申请阶段更关注预算余额、申请金额、申请事由、预计行程、预计费用科目、是否超预算或缺少前置审批。",
+        "费用报销阶段更关注真实票据、报销明细、发生日期、附件识别结果和申请/行程/票据一致性。",
         "字段必须来自 available_fields，不能编造字段。",
         "多步骤规则要使用 composite_rule_v1：先抽取事实变量，再写 conditions 和 hit_logic，不要压扁成单个关键词判断。",
         "城市/地点/路线一致性必须用 field_compare_v1 或 semantic_type=travel_route_city_consistency。",
@@ -88,6 +93,8 @@ def build_risk_rule_compiler_messages(
         "keyword_match_v1 只用于品名、摘要、票据全文中出现明确风险词的规则。",
         "不要直接指定 risk_level 或 risk_score；只输出 risk_scoring_evidence，后端会按固定评分模型计算 0-100 分和风险等级。",
         "评分证据必须围绕六个指标：业务影响、违规确定性、证据强度、例外/规避空间、处置强度、场景敏感度。",
+        "若规则语义是可修复的低风险提醒，例如资料要素缺失但归属清晰、仅提醒/提示/补齐且不退回不阻断，则 impact_level 和 control_action 应保持低强度。",
+        "只有涉及造假、重复报销、金额超标、城市/日期不一致、禁止提交、退回修改、阻断或审计复核时，才应给 high 或 critical 的评分证据。",
     ]
     examples = [
         {
@@ -114,6 +121,26 @@ def build_risk_rule_compiler_messages(
                 "keywords": [],
                 "exception_keywords": ["绕行", "跨城办事", "临时改签"],
             },
+        },
+        {
+            "user_rule": (
+                "差旅报销时，票据已上传但发票号码或商品服务名称缺失，且报销事由、人员和部门"
+                "能够说明费用归属，则标记为低风险，仅提醒补齐票据要素。"
+            ),
+            "expected": {
+                "template_key": "field_required_v1",
+                "field_keys": ["attachment.invoice_no", "attachment.goods_name", "claim.reason"],
+                "condition_summary": "票据要素缺失但费用归属清晰时，仅提示补齐。",
+                "risk_scoring_evidence": {
+                    "impact_level": "low",
+                    "violation_certainty": "medium",
+                    "evidence_strength": "medium",
+                    "exception_dependence": "low",
+                    "control_action": "remind",
+                    "business_sensitivity": "medium",
+                    "reason": "命中后只做补齐提醒，不阻断、不退回，也不涉及舞弊或金额越权。",
+                },
+            },
         }
     ]
     return [
@@ -133,11 +160,13 @@ def build_risk_rule_compiler_messages(
             "content": json.dumps(
                 {
                     "business_domain": domain,
-                "business_domain_label": domain_label,
-                "expense_category": expense_category,
-                "expense_category_label": expense_category_label,
-                "natural_language": natural_language,
-                "available_fields": available_fields,
+                    "business_domain_label": domain_label,
+                    "business_stage": business_stage,
+                    "business_stage_label": business_stage_label,
+                    "expense_category": expense_category,
+                    "expense_category_label": expense_category_label,
+                    "natural_language": natural_language,
+                    "available_fields": available_fields,
                     "required_json_shape": schema,
                     "examples": examples,
                 },