Codeac analyze results fails on main: service cannot analyse the repo

[hyperpolymath]

Problem

The legacy commit status Codeac analyze results (external Codeac service) is failure with "Codeac was not able to perform analysis." on main head 8a4f983 and on PR #586. It is not a required context. The service gives no further output on the status.

Acceptance criteria

• Determine why Codeac cannot analyse this repository (configuration, repo size, or App access).
• Either Codeac analyze results is green on main, or the Codeac App is removed from this repo by the owner and the context stops being posted.

Deferral issue under AGENTS.md §5c item 3, filed from #586.