Serve Tamland report for Dedicated tenant for internal access

Extracted from #2213 (comment 1665548694)

Tamland publishes daily reports (a static site using mkdocs, example) with forecasts from inside a Dedicated tenant. Those are stored in a tenant-local S3 bucket.

In order to provide access to those reports for team members, we'll need to serve the latest Tamland report and expose that with proper permissions set up.

Possible solutions (no particular order):

1. Expose report through Switchboard (?)
2. Setup an internal project in this group with CI to pull data from tenant-local buckets and render a Pages deployed report for all tenants
3. Run a simple web service inside the tenant
4. Serve from S3 bucket through CloudFront for authentication
5. Expose prometheus metrics instead of the report tamland#138
6. ?