fix(agent): 修复规则中心表格版本和修改记录

补齐规则资产 JSON 读写接口和前端调用，修复 AuditView 导入缺失。

Excel 在线编辑改为比对所有页签并生成最近修改记录，版本快照统一保存到 rules/finance-rules/.versions。

隔离规则表测试存储，避免测试或旧入口写入真实规则目录与 storage/agent_assets。

web/src/views/scripts/AuditView.js

@@ -1695,12 +1695,30 @@ export default {
       }
       return (spreadsheetChangeRecordsByAsset.value[selectedSkill.value.id] || [])
         .filter((item) => item?.changed_at)
-        .map((item) => ({
-          ...item,
-          time: formatDateTime(item.changed_at),
-          previewChanges: Array.isArray(item.cell_changes) ? item.cell_changes.slice(0, 3) : [],
-          remainingChangeCount: Math.max((item.changed_cell_count || 0) - 3, 0)
-        }))
+        .map((item) => {
+          const sheetNames = [
+            ...(Array.isArray(item.sheet_changes)
+              ? item.sheet_changes.map((change) => normalizeText(change.sheet_name))
+              : []),
+            ...(Array.isArray(item.cell_changes)
+              ? item.cell_changes.map((change) => normalizeText(change.sheet_name))
+              : [])
+          ].filter(Boolean)
+          const changedSheetNames = [...new Set(sheetNames)]
+          const previewChanges = Array.isArray(item.cell_changes) ? item.cell_changes.slice(0, 3) : []
+          return {
+            ...item,
+            time: formatDateTime(item.changed_at),
+            changeCountLabel: item.changed_cell_count
+              ? `${item.changed_cell_count} 处改动`
+              : `${item.changed_sheet_count || changedSheetNames.length || 0} 个工作表`,
+            changedSheetNames,
+            sheetPreview: changedSheetNames.slice(0, 4),
+            remainingSheetCount: Math.max(changedSheetNames.length - 4, 0),
+            previewChanges,
+            remainingChangeCount: Math.max((item.changed_cell_count || 0) - previewChanges.length, 0)
+          }
+        })
     })
     const selectedSpreadsheetChangeSheetRows = computed(() =>
       Array.isArray(selectedSpreadsheetChangeRecord.value?.sheet_changes)
@@ -2133,13 +2151,24 @@ export default {
             )
             .join('|')
         : ''
+      const sheetSignature = Array.isArray(latest.sheet_changes)
+        ? latest.sheet_changes
+            .map((item) =>
+              [item?.sheet_name, item?.change_type]
+                .map((value) => normalizeText(value))
+                .join(':')
+            )
+            .join('|')
+        : ''
       return [
         latest.id,
         latest.changed_at,
         latest.actor,
+        latest.version,
         latest.summary,
         latest.changed_sheet_count,
         latest.changed_cell_count,
+        sheetSignature,
         previewSignature
       ]
         .map((value) => normalizeText(value))
@@ -2538,7 +2567,21 @@ export default {
             loadSpreadsheetChangeRecords(assetId).catch(() => {})
           }
           if (selectedSkill.value.usesJsonRiskRule) {
-            await loadRiskRuleJson(assetId)
+            try {
+              await loadRiskRuleJson(assetId)
+            } catch (jsonError) {
+              console.warn('Failed to load risk rule JSON:', jsonError)
+              const jsonMessage =
+                jsonError?.message || '风险规则 JSON 文件缺失或无法读取，请同步规则库后重试。'
+              toast(jsonMessage)
+              selectedSkill.value = {
+                ...selectedSkill.value,
+                riskRuleJsonText: '{}',
+                riskRuleDescription:
+                  selectedSkill.value.riskRuleDescription ||
+                  '规则 JSON 尚未就绪，请联系管理员执行平台风险规则同步。'
+              }
+            }
           }
         }
       } catch (error) {