check_placement should generate a loadable error file

[maliberty]

Description

Global and detailed placement report their errors to a file that is loadable in the GUI. Detailed placement (ie check_placement) should do the same.

(From the discussion in #3604)

Suggested Solution

No response

Additional Context

No response

[maliberty]

I would update this to they should report with markers rather than a file

[github-actions]

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