Manual audit fixes A/E/F: fuel totalizer, Victor/Jet airways, TIME TO BOD

A — Fuel totalizer (SYSTEM key, renamed from ENGINE): DEC/INC/RST FUEL had no
handler. Now adjust the fuel_totalizer_sum_kg dataref (±1 gal, RST→max fuel) and
the EIS shows the calculated remaining/used. cdiSrc-style writable + demo echo.

E — AIRWAYS: was a single on/off. earth_awy.dat field 8 (airway layer) is now
parsed (1=Victor/low, 2=Jet/high; name-prefix fallback), the bbox returns it, and
the AIRWAYS softkey cycles off→all→Victor→Jet with an AIRWY-LO/-HI label.

F — CURRENT VNV PROFILE now shows TIME TO BOD (bottom of descent) once past the
top of descent, instead of only TIME TO TOD.

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

server/bridge.js

@@ -325,6 +325,7 @@ function startDemo() {
     // engine strip (arrays, like the sim)
     engRpm: [2410], fuelFlow: [0.0072], oilTemp: [88], oilPress: [52], egt: [720],
     fuelQty: [60, 58], volts: [process.env.DEMO_ALERT ? 23.4 : 28.0, 27.8], amps: [-1.5], genAmps: [20.5], engHrs: 5040,
+    fuelTot: 118 * 2.72, fuelMax: 144 * 2.72, // fuel totalizer: 118 of 144 gal (kg) — SYSTEM keys adjust
   });
   // a sample plan so the map/FMS show something in demo mode
   fp.setPlan({ name: 'DEMO', waypoints: [

server/config.js

@@ -96,6 +96,8 @@ export const DATAREFS = {
   oilPress:    'sim/cockpit2/engine/indicators/oil_pressure_psi',
   egt:         'sim/cockpit2/engine/indicators/EGT_deg_C',
   fuelQty:     'sim/cockpit2/fuel/fuel_quantity',
+  fuelTot:     'sim/cockpit2/fuel/fuel_totalizer_sum_kg', // pilot-set fuel totalizer (remaining, kg)
+  fuelMax:     'sim/aircraft/weight/acf_m_fuel_tot',      // max fuel capacity (kg) — for RST FUEL
   volts:       'sim/cockpit2/electrical/bus_volts',     // array: [0]=main bus, [1]=essential
   amps:        'sim/cockpit2/electrical/battery_amps',  // battery (S) amps
   genAmps:     'sim/cockpit2/electrical/generator_amps', // alternator (M) amps
@@ -135,6 +137,7 @@ export const WRITABLE_DATAREFS = {
   xpdrMode: 'sim/cockpit2/radios/actuators/transponder_mode', // 0 off,1 stby,2 on,3 alt
   xpdrCode: 'sim/cockpit2/radios/actuators/transponder_code', // 4-digit squawk
   cdiSrc:   'sim/cockpit2/radios/actuators/HSI_source_select_pilot', // 0 NAV1 · 1 NAV2 · 2 GPS (CDI softkey cycles it)
+  fuelTot:  'sim/cockpit2/fuel/fuel_totalizer_sum_kg', // SYSTEM → DEC/INC/RST FUEL adjusts the totalizer
 };
 
 // Commands the frontend may TRIGGER (autopilot mode buttons etc.).

server/navdata.js

@@ -167,9 +167,13 @@ async function parseAirways(file) {
     const b = index.get((p[3] || '').toUpperCase());
     if (!a || !b) continue;                       // endpoint not in our database
     const name = p[p.length - 1];
+    // Field 8 (index 7) = airway layer: 1 = low/Victor, 2 = high/Jet (used by the
+    // MFD AIRWAYS key to show all / Victor-only / Jet-only). Fall back to the name
+    // prefix (V… = low, J… = high) if the field is missing.
+    const lyr = +p[7] === 1 ? 1 : +p[7] === 2 ? 2 : /^J/i.test(name) ? 2 : /^V/i.test(name) ? 1 : 0;
     const k = `${Math.floor((a.lat + b.lat) / 2)},${Math.floor((a.lon + b.lon) / 2)}`;
     let arr = awyCells.get(k); if (!arr) { arr = []; awyCells.set(k, arr); }
-    arr.push({ la1: a.lat, lo1: a.lon, la2: b.lat, lo2: b.lon, name });
+    arr.push({ la1: a.lat, lo1: a.lon, la2: b.lat, lo2: b.lon, name, lyr });
     state.awy++;
   }
 }