- Add useOscilloscopeStore with ring-buffer sample storage and channel management
- Add onPinChangeWithTime callback to AVRSimulator (fires on every bit transition with cycle-derived timestamp)
- Add onPinChangeWithTime callback to RP2040Simulator (fires on GPIO state change)
- Wire oscilloscope callbacks in useSimulatorStore (initSimulator + setBoardType)
- Create Oscilloscope React component with canvas-based waveform rendering
- Add oscilloscope panel to EditorPage (resizable bottom panel, same as SerialMonitor)
- Add 'Scope' toggle button to SimulatorCanvas toolbar
Co-authored-by: davidmonterocrespo24 <47928504+davidmonterocrespo24@users.noreply.github.com>
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