Manual audit B/C/D: VNAV control, Direct-To descent, NRST actions

D — NRST page: each nearest entry can now load its tower/CTAF into COM1 standby
(→COM) or a VOR into NAV1 standby (→NAV), and fly Direct-To it (D→). Nearest now
takes xp; com/nav standby datarefs made writable.

C — Direct-To with VNAV descent: the DTO dialog's ALT (MSL/AGL) and OFFSET fields
are now editable; entering an altitude makes the target a designated VNAV fix
(alt+dsgn) and arms VNAV, so the descent profile + PFD chevrons compute.

B — VNAV control: shared vnav config (enabled/fpa/offsetNm) threaded to PFD +
FplPage. The CURRENT VNV PROFILE panel gains ENBL/CNCL VNV, FPA ±, along-track
ATK ± and VNV-D→ keys; the profile + PFD chevrons honour the chosen FPA/offset
and hide when cancelled.

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

web/src/App.jsx

@@ -70,6 +70,10 @@ export default function App() {
   const fpl = win === 'fpl', dto = win === 'dto', proc = win === 'proc';
   // MFD map mode (base layer + overlays), switched via the Map-Opt softkeys.
   const [mapMode, setMapMode] = useState({ base: 'topo' });
+  // VNAV profile control (FPL VNAV keys + Direct-To descent): enabled gates the
+  // profile/chevrons, fpa is the descent angle (°), offsetNm levels off that far
+  // before the waypoint. See FplPage CURRENT VNV PROFILE + PFD chevrons.
+  const [vnavCfg, setVnavCfg] = useState({ enabled: true, fpa: 3, offsetNm: 0 });
   // Altimeter barometric units (false = inHg, true = hectopascal) — PFD ALT UNIT softkey.
   const [baroHpa, setBaroHpa] = useState(false);
   // Barometric minimums (set in TMR/REF) — shown on the PFD altimeter as BARO MIN.
@@ -93,11 +97,11 @@ export default function App() {
   // the display's lower-right (like the real unit), not over the whole app.
   const dialogs = (
     <>
-      {dto && <DirectTo xp={xp} onClose={() => setWin(null)} />}
+      {dto && <DirectTo xp={xp} onClose={() => setWin(null)} vnav={vnavCfg} onVnav={setVnavCfg} />}
       {proc && <Proc xp={xp} onClose={() => setWin(null)} />}
       {fpl && (
         <div className="gwin-backdrop" onClick={() => setWin(null)}>
-          <div onClick={(e) => e.stopPropagation()}><FplPage xp={xp} onClose={() => setWin(null)} /></div>
+          <div onClick={(e) => e.stopPropagation()}><FplPage xp={xp} onClose={() => setWin(null)} vnav={vnavCfg} onVnav={setVnavCfg} /></div>
         </div>
       )}
     </>
@@ -140,16 +144,16 @@ export default function App() {
             tmr={tmr} onToggleTmr={() => toggleWin('tmr')} dme={dme} onToggleDme={() => toggleWin('dme')}
             alerts={alerts} onToggleAlerts={() => toggleWin('alerts')} onProc={() => toggleWin('proc')} onFpl={() => toggleWin('fpl')} onClr={() => setWin(null)}
             altHpa={baroHpa} onAltUnit={setBaroHpa} obs={obs} onObs={() => setObs((v) => !v)}>
-            <PFD values={xp.values} command={xp.command} connected={xp.xpConnected} svt={svt3d} inset={inset} insetMode={insetMode} nrst={nrst} onCloseNrst={() => setWin(null)}
+            <PFD xp={xp} values={xp.values} command={xp.command} connected={xp.xpConnected} svt={svt3d} inset={inset} insetMode={insetMode} nrst={nrst} onCloseNrst={() => setWin(null)}
               tmr={tmr} onCloseTmr={() => setWin(null)} dme={dme} onCloseDme={() => setWin(null)}
               alerts={alerts} onCloseAlerts={() => setWin(null)} baroHpa={baroHpa} obs={obs}
-              minimums={minimums} onMinimums={setMinimums} flightPlan={xp.flightPlan} fp={xp.fp} />
+              minimums={minimums} onMinimums={setMinimums} flightPlan={xp.flightPlan} fp={xp.fp} vnav={vnavCfg} />
             {dialogs}
           </Bezel>
         )}
         {tab === 'mfd' && (
           <Bezel variant="mfd" xp={xp} knobMode={knobMode} mapMode={mapMode} onMapMode={setMapMode} onDirect={() => toggleWin('dto')} onProc={() => toggleWin('proc')} onFms={cycleMfd} onFpl={() => setMfdPage('fpl')} onClr={() => setWin(null)}>
-            <MFD values={xp.values} flightPlan={xp.flightPlan} fp={xp.fp} mapMode={mapMode} page={mfdPage} onCycle={cycleMfd} xp={xp} />
+            <MFD values={xp.values} flightPlan={xp.flightPlan} fp={xp.fp} mapMode={mapMode} page={mfdPage} onCycle={cycleMfd} xp={xp} vnav={vnavCfg} onVnav={setVnavCfg} />
             {dialogs}
           </Bezel>
         )}