fix: avoid mojibake in Windows terminal status output

[Bortlesboat]

Summary

• replace unicode status glyphs with ASCII markers ([OK], [ERR], [INFO], [WARN]) in shared CLI helpers
• replace em dash in verbose progress output with ASCII - for safer rendering across terminals
• keep behavior unchanged except output formatting

Why

Issue #168 reports garbled output on Windows PowerShell. This keeps status text readable in non-UTF terminal paths and log collectors.

Validation

pm ci`n-
pm test (existing upstream failures in installer-target tests + Node OOM; unrelated to this formatting-only change)