v1.1.0 - Enhanced Multi-Line Editor

🎉 What's New

Enhanced Multi-Line Editor with Keyboard Controls

The multi-line editor now features intuitive keyboard controls that make entering code blocks and long prompts feel natural:

New Features:

• ⌨️ ESC Key Cancellation - Press ESC to instantly cancel multi-line input
• ⬆️ Up Arrow Editing - Press ↑ at the start of a line to go back and edit the previous line
• 📋 Full History Integration - Entire multi-line blocks saved to history, recall with ↑ at main prompt
• 🎯 Line Numbers - Clear context with numbered lines (1│, 2│, etc.)
• 🖥️ Cross-Platform - Works on Unix, Linux, Mac, and Windows
• 📝 Status Feedback - Clear visual indicators for all actions

How It Works:
```bash
You: \\
Multi-line mode:
• Empty line to submit
• ESC or .cancel to cancel
• ↑ or .back to edit previous line
1│ First line here
2│ Second line with typo
3│ [press ↑]
↑ Editing line 2...
2│ [press ↑ again to recall line]
2│ Second line fixed
3│ Third line
4│
✓ 3 lines captured
```

Technical Implementation:

• Zero external dependencies - uses Python stdlib only
• Platform-specific terminal control (termios/tty for Unix, msvcrt for Windows)
• Graceful fallback to `.cancel` and `.back` commands
• 100ms timing window to distinguish ESC from arrow sequences
• Maintains full readline editing capabilities

Testing

• ✅ 286 tests passing (13 new tests for multi-line editor)
• ✅ Comprehensive coverage of all keyboard controls
• ✅ Edge cases: empty lines, no previous line, multiple edits
• ✅ Cross-platform compatibility verified

Bug Fixes & Improvements

• Fixed ruff F401 unused import warnings
• Added proper type annotations
• Updated documentation

📦 Installation

```bash
pip install --upgrade basic-agent-chat-loop
```

📚 Documentation

See MULTILINE_EDITOR_ENHANCEMENTS.md for complete documentation and usage examples.

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Full Changelog: v1.0.1...v1.1.0