feat: 增强风险规则生成引擎与预算中心页面

后端拆分风险规则生成为解释器、语义分析、本体对齐等子模块，
优化模板执行和流程图生成，完善员工种子数据和导入逻辑，增强
报销单权限策略和草稿持久化，前端新增预算中心视图和趋势图
组件，重构审计页面和风险规则测试对话框交互，完善文档中心
和报销创建页面细节，补充单元测试覆盖。

server/src/app/api/v1/endpoints/agent_assets.py

@@ -2,7 +2,7 @@ from __future__ import annotations
 
 from typing import Annotated
 
-from fastapi import APIRouter, Body, Depends, Header, HTTPException, Query, status
+from fastapi import APIRouter, BackgroundTasks, Body, Depends, Header, HTTPException, Query, status
 from fastapi.responses import FileResponse
 from sqlalchemy.orm import Session
 
@@ -14,6 +14,7 @@ from app.api.deps import (
     require_rule_editor_user,
     require_rule_reviewer_user,
 )
+from app.db.session import get_session_factory
 from app.schemas.agent_asset import (
     AgentAssetCreate,
     AgentAssetListItem,
@@ -26,6 +27,7 @@ from app.schemas.agent_asset import (
     AgentAssetRiskRuleEnabledUpdate,
     AgentAssetRiskRuleGenerateRequest,
     AgentAssetRiskRuleLatestTestSummary,
+    AgentAssetRiskRuleLevelUpdate,
     AgentAssetRiskRuleReportRequest,
     AgentAssetRiskRuleReturnRequest,
     AgentAssetRiskRuleSampleTestRequest,
@@ -43,7 +45,7 @@ from app.schemas.agent_asset import (
 )
 from app.schemas.common import ErrorResponse
 from app.services.agent_assets import AgentAssetService
-from app.services.risk_rule_generation import RiskRuleGenerationService
+from app.services.risk_rule_generation_jobs import RiskRuleGenerationJobService
 
 router = APIRouter(prefix="/agent-assets")
 DbSession = Annotated[Session, Depends(get_db)]
@@ -71,6 +73,25 @@ def _handle_asset_error(exc: Exception) -> None:
     raise exc
 
 
+def _complete_risk_rule_generation_task(
+    asset_id: str,
+    payload: dict,
+    actor: str,
+    request_id: str | None,
+) -> None:
+    db = get_session_factory()()
+    try:
+        body = AgentAssetRiskRuleGenerateRequest.model_validate(payload)
+        RiskRuleGenerationJobService(db).complete_rule_asset_generation(
+            asset_id,
+            body,
+            actor=actor,
+            request_id=request_id,
+        )
+    finally:
+        db.close()
+
+
 @router.get(
     "",
     response_model=list[AgentAssetListItem],
@@ -284,6 +305,7 @@ def save_agent_asset_rule_json(
 )
 def generate_agent_asset_risk_rule(
     payload: AgentAssetRiskRuleGenerateRequest,
+    background_tasks: BackgroundTasks,
     current_user: RuleEditorUser,
     db: DbSession,
     x_actor: ActorHeader = None,
@@ -291,11 +313,18 @@ def generate_agent_asset_risk_rule(
 ) -> AgentAssetRead:
     try:
         actor = (x_actor or current_user.name or "system").strip() or "system"
-        asset_id = RiskRuleGenerationService(db).generate_rule_asset(
+        asset_id = RiskRuleGenerationJobService(db).enqueue_rule_asset_generation(
             payload,
             actor=actor,
             request_id=x_request_id,
         )
+        background_tasks.add_task(
+            _complete_risk_rule_generation_task,
+            asset_id,
+            payload.model_dump(mode="json"),
+            actor,
+            x_request_id,
+        )
         asset = AgentAssetService(db).get_asset(asset_id)
         if asset is None:
             raise LookupError("Asset not found")
@@ -736,6 +765,27 @@ def set_agent_asset_risk_rule_enabled(
         _handle_asset_error(exc)
 
 
+@router.post(
+    "/{asset_id}/risk-rule-level",
+    response_model=AgentAssetRead,
+    summary="风险规则风险等级已由评分模型接管",
+    description="风险规则等级和分数由自然语言规则评分模型生成，不再允许人工调整。",
+)
+def set_agent_asset_risk_rule_level(
+    asset_id: str,
+    payload: AgentAssetRiskRuleLevelUpdate,
+    current_user: RuleEditorUser,
+    db: DbSession,
+    x_actor: ActorHeader = None,
+    x_request_id: RequestIdHeader = None,
+) -> AgentAssetRead:
+    try:
+        del asset_id, payload, current_user, db, x_actor, x_request_id
+        raise ValueError("风险等级和分数由评分模型自动计算，不能手动修改。")
+    except Exception as exc:
+        _handle_asset_error(exc)
+
+
 @router.post(
     "/{asset_id}/return",
     response_model=AgentAssetRiskRuleLatestTestSummary,