feat(filelib): 操作日志模块——防篡改哈希链、组合查询与 CSV 导出

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

hub/test/integration/filelib-routes.test.ts

@@ -226,10 +226,18 @@ describe("filelib http · 文件冲突流", () => {
     expect(conflict.statusCode).toBe(409);
     expect(conflict.json().error.currentVersion).toBe(commit.json().version);
 
-    const audit = await prisma.auditEntry.findFirst({
+    // 冲突事件走事务外旁路(ADR-0039):业务抛了 409,日志仍须存在,
+    // 且带上起始版本与冲突版本。
+    const audit = await prisma.fileLibAuditLog.findFirst({
       where: { organizationId: DEFAULT_ORG_ID, action: "file.conflict_detected" },
     });
     expect(audit).not.toBeNull();
+    expect(audit!.result).toBe("FAILURE");
+    expect(audit!.failureReason).toContain("version_conflict");
+    expect(audit!.context).toMatchObject({
+      baseVersion: v1,
+      currentVersion: commit.json().version,
+    });
   });
 });