feat: 新增风险规则生成引擎与知识图谱可视化

后端新增风险规则自动生成和模板执行服务，支持从规则资产
批量生成并持久化风险规则文件；知识库入库日志增强图谱
查询和本地 RAG 回退，前端审计页面增加风险规则模型和流
程图组件，知识入库面板拆分为图谱可视化子组件，报销创
建页面增加引导式流程模型，更新知识库索引数据。

web/tests/knowledge-ingest-log-model.test.mjs

@@ -26,8 +26,26 @@ function buildRun() {
           chunk_count: 5,
           entity_count: 3,
           relation_count: 2,
-          entities: ['远光软件', '支出管理'],
-          relations: [{ source: '远光软件', target: '支出管理', type: '关联' }]
+          entities: [
+            {
+              name: '远光软件',
+              type: 'ORGANIZATION',
+              description: '远光软件是支出管理制度的公司主体。',
+              descriptions: ['远光软件是支出管理制度的公司主体。'],
+              properties: { created_at: '2026-05-23' }
+            },
+            '支出管理'
+          ],
+          relations: [
+            {
+              source: '远光软件',
+              target: '支出管理',
+              type: '约束',
+              description: '通过制度约束支出审批。',
+              keywords: ['制度', '审批'],
+              weight: 2.5
+            }
+          ]
         },
         documents: [
           {
@@ -40,7 +58,8 @@ function buildRun() {
             chunk_count: 3,
             entity_count: 2,
             relation_count: 1,
-            chunks: [{ id: 'chunk-1', order: 0, tokens: 21, summary: '支出管理范围' }],
+            chunks: [{ id: 'chunk-1', order: 0, tokens: 21, summary: '支出管理范围', excerpt: '支出管理范围正文' }],
+            entity_chunks: [{ entity: '支出管理', chunk_ids: ['chunk-1'] }],
             sections: [{ title: '第一章 总则', excerpt: '适用于公司支出。' }],
             events: [{ at: '2026-05-22T08:00:00Z', level: 'info', message: '完成' }]
           },
@@ -75,8 +94,18 @@ function testBuildsInteractiveModel() {
   assert.equal(model.documents.length, 2)
   assert.equal(model.documents[0].statusLabel, '已完成')
   assert.equal(model.documents[0].chunks[0].summary, '支出管理范围')
+  assert.equal(model.documents[0].chunks[0].excerpt, '支出管理范围正文')
+  assert.deepEqual(model.documents[0].entityChunks, [{ entity: '支出管理', chunkIds: ['chunk-1'] }])
+  assert.deepEqual(model.documents[1].chunks, [])
+  assert.deepEqual(model.documents[1].sections, [])
+  assert.deepEqual(model.documents[1].events, [])
   assert.equal(model.graph.entityCount, 3)
+  assert.equal(model.graph.entities[0].name, '远光软件')
+  assert.equal(model.graph.entities[0].type, 'ORGANIZATION')
+  assert.equal(model.graph.entities[0].descriptions[0], '远光软件是支出管理制度的公司主体。')
   assert.equal(model.graph.relations[0].source, '远光软件')
+  assert.equal(model.graph.relations[0].description, '通过制度约束支出审批。')
+  assert.deepEqual(model.graph.relations[0].keywords, ['制度', '审批'])
   assert.equal(model.metrics[1].value, '5')
 }