fix: charmap codec error in remaining command files on Windows

[timenick]

Bug

Several command files under src/winml/modelkit/commands/ crash on Windows with UnicodeEncodeError when printing non-ASCII characters (→, —, •). The default cp1252 encoding on Windows cannot encode these characters.

UnicodeEncodeError: 'charmap' codec can't encode character '\u2192' in position 1: character maps to <undefined>

Root Cause

PR #200 (commit 92325bf) fixed the same class of bug in analyze and inspect, but missed the following files:

• optimize.py — → and • in comments and console.print()
• build.py — — in comment
• config.py — — in string literal (runtime crash)
• eval.py — → in comment
• live_chart.py — → and — in comments
• perf.py — — and → in comments

Fix

Replace → with ->, — with --, and • with * in all affected files, matching the approach in PR #200.

Environment

• Windows 11, Python 3.10.9, cp1252 console encoding