Asses whether saving allure-history as a means for build historical data is useful

[dianabarsan]

Describe the issue
We download and store allure history with every e2e test. The reports are available on https://docs.communityhealthtoolkit.org/build-history/

Describe the improvement you'd like
As far as I can tell, the reports don't actually show history, they show the latest run. And even if a test has failed recently, but not in the last suite, it will come up as having 100% success rate.

An example:
This failure: https://github.com/medic/cht-core/actions/runs/12483808060/job/34840612337
Appears in the the trend:

But is reported as 100% success:

This is confusing and unhelpful.

Describe alternatives you've considered
Options:

1. Figure out if there is a way to access historical builds in allure.
2. Persist build history in a different way that is accessible.