Pull requests: `lint (fmt, clippy)` and `pr-size` join the required checks
together with all five `Tests (<os>)` jobs and both `Release workspace` jobs,
so a PR can no longer merge with a red platform. Draft PRs run the three fast
platforms on every push; marking ready for review adds Intel Mac and Windows
ARM64. `pr-size` labels size/S-XL and fails above 1500 changed source lines
unless a maintainer adds `size-exempt`.
Issues: the bug form now asks for OS version, shell, program in the pane,
connection type, non-default settings and mandatory logs/screenshots, with
log paths per platform. `issue-labels` turns the dropdowns into os:/area:
labels, flags regressions, and parks reports without usable steps, evidence
or a version as needs-info with a checklist comment; an edit that fills the
gaps clears the label. config.yml pointed at the old nebula repository.