Merge remote-tracking branch 'origin/main' into fix/e2e-empty-test-runs

Two conflicts, both additive:

• mise-tasks/test/e2e/_default: main added the antigravity go_timeout block where this branch added rc=0. Kept both.
• e2e/README.md: main rewrote the CI-workflows paragraph and added the Unix-installer paragraph; this branch appended the empty-selection section after it. Kept main's paragraphs, then the section.