ESP32 digitalRead now reflects the actual circuit instead of a part-level
seed, so a button behaves like hardware — including breaking when it's
mis-wired.
- connectDigitalInputsToMcu: after each SPICE solve, threshold every ESP32
input pin's net voltage (3.3 V LVCMOS, hysteresis) and push the level into
QEMU. Only pins the MCU isn't driving as outputs are injected.
- Esp32BridgeShim advertises spiceDrivenInputs; the pushbutton / 6mm-button /
slide-switch parts skip their direct setPinState seed for such boards and
only flip the component property (pressed/value), which re-solves the
circuit. The connector then decides the level from the real wiring.
- makePinPullHandler no longer seeds the pin; it only records the pull
(netlist resistor) + requests a re-solve, so the read stays circuit-driven.
- GROUND_PIN_RE now matches bare numbered grounds (GND2, GND3) — the ESP32
DevKit element labels its second pad 'GND2', which previously floated.
Net effect: a correctly-wired INPUT_PULLUP button idles HIGH and reads LOW
pressed; a button mis-wired with GND on the wrong terminal reads stuck-LOW,
matching real silicon. AVR / RP2040 keep the legacy part-seed path.
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