Add Serial Monitor in VS Code Panel area

[Alireza-Jahanbakhshi]

Add Serial Monitor in VS Code Panel area

✨ Description

This pull request enhances the avr-utils extension by adding a Serial Monitor integrated into the VS Code Panel area as a tab alongside the Terminal and Output panels. It allows users to monitor and interact with AVR microcontrollers via a serial port, with a modern UI, performance optimizations, and seamless integration with VS Code’s built-in panels.

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✅ Changes

• 📡 Serial Monitor in Panel Area

  • Used WebviewView to place the Serial Monitor in the Panel area as a "Sensor Monitor" tab.
  • Supports serial port and baud rate selection via QuickPick.

• 🎨 Modern UI Design

  • Toolbar includes line ending selection, start/stop, clear, autoscroll, and data rate indicator.
  • Styled with a dark theme, hover effects, and tooltips.

• ⚡ Performance Optimization

  • Throttles UI updates (100ms) and limits output (500 lines).

• 🔌 Terminal and Output Integration

  • Sends serial data to the VS Code Terminal.
  • Logs actions (e.g., port opened, data sent) to the Output channel.

• 🛡️ Error Handling

  • Displays errors for serial port operations and closes the view on disconnection.

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🧪 Testing

• ✅ Serial Monitor appears as a tab in the Panel area.
• ✅ Port/baud selection works, with data displayed in the Serial Monitor.
• ✅ Data is mirrored in the Terminal, and actions are logged in Output.
• ✅ UI controls and throttling work as expected.
• ✅ Tested on Windows with an AVR microcontroller.

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✅ Final Checklist

Feature	✅ Status	Notes
Panel area integration	✅	Appears as "Sensor Monitor" tab
Serial port/baud selection	✅	QuickPick with "Custom..." option works
UI toolbar functionality	✅	All controls work as expected
Throttling and output limit	✅	Updates every 100ms, limits to 500 lines
Terminal integration	✅	Data mirrored in Terminal
Output channel logging	✅	Actions logged correctly
Error handling	✅	Displays errors and closes on disconnection
Dependencies included	✅	serialport and @serialport/parser-readline added

[StrongTheDev]

Let me do some testing. I'll get back to you.

[Alireza-Jahanbakhshi]

@StrongTheDev