Citation X cockpit profile: full Primus 2000 suite (PFD/MFD/EICAS/AP/RMU)

Add a switchable cockpit-profile selector (Garmin G1000 / Cessna Citation X /
GA steam) and recreate the Citation X Honeywell Primus 2000 avionics line-for-
line from the X-Plane Citation X + FMS manuals:

- CitPFD: attitude w/ FD command bars, speed tape (Vmo barber-pole, Vfe, low-
  speed red/amber bands), AOA index, altitude tape + trend, VSI, round HSI with
  CDI/course pointer + VOR/ADF bearing pointers, radar altimeter, minimums,
  STD/BARO/CRS/HDG bezel.
- CitEICAS: twin FAN%/ITT bar gauges, OIL °C/PSI, FUEL (flow/qty PPH·LBS),
  ELECTRICAL, HYDRAULICS, slat chevron, STAB trim, FLAPS, CAS message stack,
  softkeys NORM/FUEL-HYD/ELEC/CTRL-POS/ENG + control-position overlay.
- CitMFD: Honeywell heading-up arc map, FMS route (magenta active/white future),
  TCAS, terrain/WX, range arc, ETE/SAT/TAS/GSPD block, clock + ET/FT timer,
  V-SPEEDS reference card, MFD-setup overlays (TRAFFIC/TERRAIN/APTS/VOR).
- CitAP: HDG/NAV/APP/BC · ALT/VNAV/BANK/STBY · FLC/C-O/VS · pitch wheel ·
  AP/YD/M-TRIM/PFD-SEL, FMA bar + lamps from per-mode *_status datarefs.
- CitRMU: COM/NAV active+standby tuning, transponder, ADF, TCAS range/mode,
  IDENT + Nav Source Selector (NAV1/2/FMS, VOR/ADF/FMS bearing source).

Integration: all avionics stream live via the X-Plane Web API (new datarefs for
N1/N2/ITT, radar-alt, AOA, hydraulics, trim, flaps/slats/gear, control
positions, ADF, mach, yaw-damper); the existing fms-sync.lua drives the
Citation's built-in FMS (aircraft-agnostic XPLM FMS SDK). Demo seeds added so
every panel renders offline. Verified headless via Playwright (no console
errors; G1000/GA profiles unaffected).

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

server/config.js

@@ -126,6 +126,45 @@ export const DATAREFS = {
   flcStatus:   'sim/cockpit2/autopilot/speed_status',
   gsStatus:    'sim/cockpit2/autopilot/glideslope_status',
   vnavStatus:  'sim/cockpit2/autopilot/vnav_status',
+
+  // ====================================================================
+  // CESSNA CITATION X (model 750) — twin Rolls-Royce AE3007C turbofans.
+  // Honeywell Primus 2000 suite: PFD / MFD / EICAS / dual CDU.
+  // All of these are universal sim datarefs, streamed live with no Lua;
+  // only the FMS flight-plan needs the FlyWithLua bridge (fms-sync.lua).
+  // ====================================================================
+  // --- engine (arrays index 0 = LH, 1 = RH) ---
+  n1:          'sim/cockpit2/engine/indicators/N1_percent',          // Fan RPM %  (EICAS FAN%)
+  n2:          'sim/cockpit2/engine/indicators/N2_percent',          // Core RPM % (standby panel)
+  itt:         'sim/cockpit2/engine/indicators/ITT_deg_C',           // Interstage Turbine Temp °C
+  fuelPress:   'sim/cockpit2/engine/indicators/fuel_pressure_psi',
+  throttle:    'sim/cockpit2/engine/actuators/throttle_ratio',       // per-engine commanded thrust
+  // --- Citation PFD extras ---
+  radioAlt:    'sim/cockpit2/gauges/indicators/radio_altimeter_height_ft_pilot', // RA (<2500 ft AGL)
+  mach:        'sim/cockpit2/gauges/indicators/mach_pilot',          // PFD Mach / FLC target
+  aoa:         'sim/flightmodel/position/alpha',                     // angle of attack (deg) → normalised
+  adf1Brg:     'sim/cockpit2/radios/indicators/adf1_relative_bearing_deg',
+  adf2Brg:     'sim/cockpit2/radios/indicators/adf2_relative_bearing_deg',
+  adf1:        'sim/cockpit2/radios/actuators/adf1_frequency_hz',
+  adf2:        'sim/cockpit2/radios/actuators/adf2_frequency_hz',
+  // --- EICAS systems ---
+  hydPress:    'sim/cockpit2/hydraulics/indicators/hydraulic_pressure_psi', // array A/B (PSI)
+  elevTrim:    'sim/cockpit2/controls/elevator_trim',                // -1..1 → STAB deg
+  flapRatio:   'sim/cockpit2/controls/flap_ratio',                   // 0..1 → SLAT/5/15/FULL
+  flapDeploy:  'sim/flightmodel2/controls/flap1_deploy_ratio',       // actual trailing-edge flap
+  slatRatio:   'sim/flightmodel2/controls/slat_ratio',               // leading-edge slat status
+  gearHandle:  'sim/cockpit2/controls/gear_handle_down',             // 0 up / 1 down
+  gearDeploy:  'sim/flightmodel2/gear/deploy_ratio',                 // array: per-gear 0..1
+  speedbrake:  'sim/cockpit2/controls/speedbrake_ratio',
+  parkBrake:   'sim/cockpit2/controls/parking_brake_ratio',
+  // control-position graphic (CTRL POS page): commanded surface ratios -1..1
+  ailDefl:     'sim/cockpit2/controls/yoke_roll_ratio',
+  elevDefl:    'sim/cockpit2/controls/yoke_pitch_ratio',
+  rudDefl:     'sim/cockpit2/controls/yoke_heading_ratio',
+  battVolt:    'sim/cockpit2/electrical/battery_voltage',            // array per battery
+  battTemp:    'sim/cockpit2/electrical/battery_temp_C',             // ELEC page (append)
+  // --- yaw damper / mach-trim annunciation (Citation AP YD / M TRIM) ---
+  ydOn:        'sim/cockpit2/switches/yaw_damper_on',
 };
 
 // Datarefs the frontend may WRITE (e.g. turning the heading bug knob).
@@ -164,6 +203,16 @@ export const COMMANDS = {
   hdgUp:     'sim/autopilot/heading_up',
   hdgDown:   'sim/autopilot/heading_down',
   xpdrIdent: 'sim/transponder/transponder_ident',
+
+  // --- Citation X autopilot (Honeywell Primus) extras ---
+  // The mode buttons reuse the universal AP commands above (hdg/nav/apr/bc/
+  // altHold/flc/vs/vnav). These add the Citation-specific master functions.
+  yawDamper:  'sim/systems/yaw_damper_toggle',     // YD button (engages w/ AP too)
+  apStby:     'sim/autopilot/control_wheel_steer', // STBY → basic pitch/roll (CWS), drops modes
+  spdUp:      'sim/autopilot/airspeed_up',          // pitch wheel in FLC = target IAS/Mach
+  spdDown:    'sim/autopilot/airspeed_down',
+  vsUp:       'sim/autopilot/vertical_speed_up',    // pitch wheel in V/S = target fpm
+  vsDown:     'sim/autopilot/vertical_speed_down',
 };
 
 // Per-radio standby tuning (coarse = MHz, fine = kHz) + active/standby flip.