Fix Windows CI: Replace emojis with ASCII text

- Replace Unicode emojis (✅❌) with ASCII text ([OK][ERROR][MISSING])
- Fixes UnicodeEncodeError on Windows runners with cp1252 encoding
- Ensures compatibility across all CI platforms (Ubuntu, macOS, Windows)
- Archive completed orchestrator-api-completion epic files

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: jeremymanning