Replace emoji icons with plain text/ASCII equivalents to prevent
encoding issues and improve console compatibility:
- Replace checkmarks with *
- Replace x marks with x
- Replace status indicators with text [OK], [ERR], etc.
- Remove decorative emojis from info/debug log messages
- Keep functional emojis in user-facing chat/sentiment features
and code changes:
``` Add natural language scheduling, docs, wizard, and branding
- Add SET SCHEDULE natural language parser supporting patterns like
"every hour", "at 9am", "weekdays at 8am", "business
