emulator: B2 RIO lamp/button bezel on the VDB heads + explode-view polish

Draw the cockpit RIO buttons around the mono-MFD and radar heads (explode
layout), lit by the host-commanded lamp state -- the display side of the
in-fork glass cockpit. Live-validated 2026-07-24 (operator).

- vpxlog.cpp: per-head button bezel in pal_draw, reading serialrio's new
  RIO_GetPanelState seam. The 5 MFD heads get red buttons (4 top / 4 bottom,
  100px tall tucked under a grown 640x500 display so a 10px lip shows); the
  radar gets amber Secondary/Screen side columns (6x 104px each) plus a
  centered bottom indicator strip (the 4 spares). Lamp byte decoded to
  off/dim/bright (vRIO RioLampState, brighter of the two brightness fields);
  a press shows white-hot. No labels -- the MFD shows each button's function.
  Also swapped the two upper-outer MFD window NAMES to match their (already
  position-swapped) desktop locations.
- serialrio.{cpp,h}: RIO_GetPanelState(lamps, pressed) accessor -- returns
  false when no rio port, so non-rio configs and other heads render normally.
- pod-launch: in explode (dev) layout the Division bridge is a normal, freely
  movable window -- not pinned topmost (Focus.cs) and nudged to 8,40 so its
  title bar clears the top of the screen (its client was at 0,0, pushing the
  frame off-screen). Cockpit/kiosk keeps the topmost + 0,0 borderless look.

Only affects the explode layout and only when a serial=rio port is present.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

emulator/vpx-device/serialrio.cpp

@@ -211,6 +211,12 @@ void RIO_HostFocusLost(void) {
 	if (rio_instance) rio_instance->hostFocusLost();
 }
 
+bool RIO_GetPanelState(uint8_t lamps[72], uint8_t pressed[72]) {
+	if (!rio_instance) return false;
+	rio_instance->getPanelState(lamps, pressed);
+	return true;
+}
+
 // ============================================================================
 
 CSerialRio::CSerialRio(Bitu id, CommandLine* cmd) : CSerial(id, cmd) {
@@ -570,6 +576,14 @@ void CSerialRio::hostFocusLost() {
 	releaseAllKeys();
 }
 
+// panel snapshot for the in-fork lamp bezel (vpxlog reads this each frame)
+void CSerialRio::getPanelState(uint8_t lampsOut[72], uint8_t pressedOut[72]) {
+	for (int i = 0; i < 72; i++) {
+		lampsOut[i] = lamps[i];
+		pressedOut[i] = holdCounts.count(i) ? 1 : 0;   // addr held right now
+	}
+}
+
 void CSerialRio::releaseAllKeys() {
 	std::set<int> keys = heldKeys;
 	heldKeys.clear();