Steps 6.4-6.7B — Local surfaces, reference-exhibit validation, SciFi Observation surface

One commit for the work accumulated in the working tree since Step 6.3,
which had never been split into per-step commits:

- src/local-surfaces.js + src/surface-url.js (new); src/ui.js,
  src/validation.js, src/connection.js and public/index.html updated for
  local-surface hosting and generic surface rendering
- tests: local-surfaces (20), scifi-surfaces (24) and postmessage-interop (7)
  new; connection/museum-gallery/surface-validation suites updated
- reference exhibits: shared/contract-core.js defaults to Contract 5.3
  (major 5, minor 3, xzbt 5.3); museum-gallery advertises its surface
  catalog; aquarium/haunted-house/planetarium adapters updated
- SciFi-XZBT (Step 6.7A/6.7B): surface-mode.js + surface-bus.js,
  Observation-surface boot branch, local-change hooks, view.pillars /
  view.warp-flight targets; fixture byte-identical to G:/.vibe/SciFi-XZBT
- SciFi-XZBT contract adapter handshake fix: the inbound bridge filter no
  longer gates on an exact advisory xzbt value (Contract 5.3 §6.5), only on
  its presence/type, matching the host's own envelope validation; the
  adapter now advertises contract minor 3 / version 5.3.0, which it already
  implemented via the 5.3 surfaces field. Root cause of the five failing
  postmessage-interop tests (host hello was silently dropped).
- docs: architecture 6.4 and 6.7A, reference 6.6 and 6.7; evidence logs;
  test-fixtures/PROVENANCE.md resync record

Test results: NGN 154/154 (was 149/154); postmessage-interop 7/7 (was 2/7);
SciFi contract harness 21/21, real-adapter suite 32/32. git diff --check
clean for changed files; two pre-existing trailing-whitespace lines remain
in test-fixtures/reference-exhibits/scifi/index.html, copied verbatim from
the authoritative SciFi source.

Step 6.7 live verification (browser Observation, packaged standalone) is
still pending and is not claimed here.

test-fixtures/evidence/step6.4-scifi-regression.txt

@@ -0,0 +1,846 @@
+- banner:
+  - heading "XZBT-NGN Exhibit Engine" [level=1]
+  - paragraph: Contract 5.2/5.3 · One exhibit at a time
+- main:
+  - heading "Connection" [level=2]
+  - generic: Exhibit URL (same origin)
+  - textbox "Exhibit URL (same origin)":
+    - /placeholder: /public/exhibits/example/index.html
+    - text: /test-fixtures/reference-exhibits/scifi/index.html
+  - button "Load exhibit" [active]
+  - button "Reconnect"
+  - button "Disconnect"
+  - paragraph: Enter a trusted exhibit's local served path or a URL on this origin. Load exhibit also switches exhibits. Reconnect starts a new session, or reloads the last exhibit after disconnect.
+  - status: connected · synchronized
+  - paragraph: SciFi-XZBT · 5.2.0 · Contract 5.3
+  - paragraph: "Exhibit location: http://127.0.0.1:4173/test-fixtures/reference-exhibits/scifi/index.html"
+  - iframe:
+    - banner:
+      - generic "Click to Change Sci-Fi Universe":
+        - generic: STARFLIGHT
+        - generic: ▼
+      - generic: "INTERPRISE-G: MAIN BRIDGE"
+      - button "MUTE"
+      - generic: 75%
+      - generic: STARFLIGHT SOUND MATRIX v2.9
+    - main:
+      - complementary:
+        - generic: STARSHIP PRESETS
+        - 'button "Interprise-G: Main Bridge STARFLIGHT COMMAND"':
+          - generic: "Interprise-G: Main Bridge"
+          - generic: STARFLIGHT COMMAND
+        - 'button "Interprise-G: Main Engineering STARFLIGHT COMMAND"':
+          - generic: "Interprise-G: Main Engineering"
+          - generic: STARFLIGHT COMMAND
+        - 'button "Interprise-G: Crew Quarters STARFLIGHT COMMAND"':
+          - generic: "Interprise-G: Crew Quarters"
+          - generic: STARFLIGHT COMMAND
+        - 'button "USS Wayfarer: Bridge STARFLIGHT COMMAND"':
+          - generic: "USS Wayfarer: Bridge"
+          - generic: STARFLIGHT COMMAND
+        - 'button "USS Wayfarer: Class-N Worp Core STARFLIGHT COMMAND"':
+          - generic: "USS Wayfarer: Class-N Worp Core"
+          - generic: STARFLIGHT COMMAND
+        - 'button "USS Defiance: Tactical Bridge STARFLIGHT COMMAND"':
+          - generic: "USS Defiance: Tactical Bridge"
+          - generic: STARFLIGHT COMMAND
+        - 'button "Deep Space 8: Ops Center STARFLIGHT COMMAND"':
+          - generic: "Deep Space 8: Ops Center"
+          - generic: STARFLIGHT COMMAND
+        - 'button "Interprise NCC-1701.5: Bridge (TOS) STARFLIGHT COMMAND"':
+          - generic: "Interprise NCC-1701.5: Bridge (TOS)"
+          - generic: STARFLIGHT COMMAND
+        - 'button "Interprise NCC-1701.5: Engineering (TOS) STARFLIGHT COMMAND"':
+          - generic: "Interprise NCC-1701.5: Engineering (TOS)"
+          - generic: STARFLIGHT COMMAND
+        - 'button "Interprise NS-01: Command Bridge STARFLIGHT COMMAND"':
+          - generic: "Interprise NS-01: Command Bridge"
+          - generic: STARFLIGHT COMMAND
+      - generic: "INTERPRISE-G: MAIN BRIDGE"
+      - generic: Warm, low-frequency 50Hz hull tone with gentle ventilation and soft LCARD computer chirps.
+      - generic: AUDIO ENGINE
+      - generic: STANDBY
+      - generic: CORE FREQ
+      - generic: 58.0 Hz
+      - button "▶ ENGAGE":
+        - generic: ▶
+        - generic: ENGAGE
+      - button "WARP JUMP"
+      - button "RED ALERT"
+      - button "YELLOW ALERT"
+      - button "WATCH EXPERIENCE"
+      - generic: Full-screen procedural visuals, soundscape, telemetry, events, and optional local AI announcements.
+      - 'generic "Toggle starship viewport window frame (ON: framed starship lounge / OFF: pure deep space)"':
+        - generic: VIEWPORT
+        - checkbox "Toggle Observation Viewport Frame" [checked]
+        - generic: "ON"
+      - 'generic "Toggle vertical structural window pillars / mullions (OFF: unobstructed panoramic view / ON: structural posts)"':
+        - generic: PILLARS
+        - checkbox "Toggle Window Pillars"
+        - generic: "OFF"
+      - generic "Controls how frequently and intensely Observation generates transient visual activity":
+        - generic: ACTIVITY
+        - slider "Observation activity level"
+        - generic: 60%
+      - generic "Keep OBSERVATION profile/status information visible. Turn off to fade it out over 30 seconds.":
+        - generic: HUD HOLD
+        - checkbox "Keep Observation information visible" [checked]
+        - generic: "ON"
+      - generic: MAIN MASTER VOLUME
+      - generic: 75%
+      - generic: "-2.5 dB"
+      - button "MUTE"
+      - button "25%"
+      - button "50%"
+      - button "75%"
+      - button "MAX"
+      - button "−"
+      - slider "Main Volume"
+      - button "+"
+      - generic: FNC // FUTURISTIC NOICE CANCELLATION
+      - generic: ACTIVE
+      - button "FNC ENABLED" [pressed]
+      - generic: FNC LEVEL
+      - slider "Futuristic Noice Cancellation level"
+      - generic: 65%
+      - generic: "FNC comfort filter remains applied. Adaptive watchdog memory reset: preset change."
+      - generic: ACOUSTIC FREQUENCY SPECTRUM
+      - generic: PROCEDURAL HARMONIC ANALYSIS
+      - generic: "SPECTRUM BIN: 32 CH // REAL-TIME FFT"
+      - generic: PROCEDURAL SOUND ENGINE MIXER
+      - generic: LIVE PARAMETER MODULATION
+      - generic: 1. HULL DRONE
+      - generic: 65%
+      - generic: LEVEL
+      - slider
+      - generic: BASE TONE
+      - generic: 50 Hz
+      - slider
+      - generic: DAMPING CUTOFF
+      - generic: 105 Hz
+      - slider
+      - generic: 2. WORP CORE
+      - generic: 35%
+      - generic: LEVEL
+      - slider
+      - generic: PULSE RATE (BPM)
+      - generic: 48 BPM
+      - slider
+      - generic: REACTOR PITCH
+      - generic: 58 Hz
+      - slider
+      - generic: 3. LIFE SUPPORT
+      - generic: 55%
+      - generic: LEVEL
+      - slider
+      - generic: AIRFLOW AIR FILTER
+      - generic: 1600 Hz
+      - slider
+      - generic: 4. TELEMETRY
+      - generic: 45%
+      - generic: LEVEL
+      - slider
+      - generic: BACKGROUND CHIRP DENSITY
+      - generic: 65%
+      - slider
+      - complementary:
+        - generic: INTERMIX CASCADE
+        - generic: INTERMIX CHAMBER // ACTIVE
+        - generic: GENERATIVE EXPERIENCE
+        - generic: LOCAL WEBLLM + KOKORO TTS
+        - generic: LOCAL GENERATIVE SYSTEM
+        - generic: STANDBY
+        - text: LANGUAGE MODEL
+        - text: Qwen3-1.7B-q4f16_1-MLC
+        - text: Automatically prepared when the experience starts. No model selection required.
+        - text: WEBLLM
+        - generic: "OFF"
+        - text: KOKORO
+        - generic: "OFF"
+        - button "PREPARE AI"
+        - button "GENERATE NOW" [disabled]
+        - checkbox "AUTO UPDATES" [checked]
+        - text: AUTO UPDATES
+        - checkbox "SPEAK" [checked]
+        - text: SPEAK
+        - combobox "Kokoro voice":
+          - option "Kokoro voice loads on preparation" [selected]
+        - generic: VOICE AUTOMATION
+        - generic: 84%
+        - slider "Robotic voice effect intensity"
+        - generic: AUTO CADENCE
+        - generic: 90-180 SEC
+        - slider
+        - generic: AI and neural voice models load only when needed and are cached by the browser when supported.
+        - generic: GENERATIVE CHANNEL STANDBY
+        - generic: TV PRESENTATION
+        - generic: CAST-FRIENDLY 16:9
+        - checkbox "LOCK EXPERIENCE TO 16:9" [checked]
+        - text: LOCK EXPERIENCE TO 16:9
+        - generic: RENDER DENSITY
+        - generic: 1080P TARGET
+        - combobox:
+          - option "720P PERFORMANCE"
+          - option "1080P STANDARD" [selected]
+          - option "1440P HIGH"
+          - option "2160P ULTRA"
+        - generic: The scene keeps a canonical 16:9 layout on phones, PCs, and cast displays. Chrome still negotiates the final Cast stream resolution.
+        - generic: SLEEP TIMER
+        - generic: TIMER INACTIVE (CONTINUOUS)
+        - button "15M"
+        - button "30M"
+        - button "60M"
+        - button "OFF"
+        - generic: LCARD KEYPAD
+        - button "COM BADGE CHIRP"
+        - button "DOOR PNEUMATIC SWISH"
+        - button "BOSUN'S PIPE WHISTLE"
+        - button "MEDBAY ECG MONITOR"
+        - button "CARDASSIAN BULKHEAD DOOR"
+        - button "TURBOCHUTE WHOOSH"
+        - button "FABRICATOR SHIMMER"
+        - button "TRANSLOCATOR CYCLE"
+        - button "LCARD SINGLE CHIRP"
+    - contentinfo:
+      - generic: "SYSTEM STATUS: NORMAL"
+      - link "VIBE ENGINEERED BY LABYRICORN STUDIOS":
+        - /url: https://www.labyricorn.com/
+      - generic: "SPACE: PLAY/PAUSE | M: MUTE | ↑/↓: VOLUME"
+  - heading "Exhibit controls (61)" [level=2]
+  - generic "Capabilities"
+  - paragraph: Reported values are authoritative. New values are drafts; select Set or Invoke to submit. Rediscovery resets drafts.
+  - heading "audio" [level=3]
+  - article:
+    - heading "Master Volume" [level=3]
+    - code: mix.master
+    - paragraph: range · readable · writable
+    - status: "Reported value: 0.75"
+    - generic "Target descriptor"
+    - paragraph
+    - text: New value
+    - spinbutton "New value": "0.75"
+    - button "Set"
+  - article:
+    - heading "Hull Drone Level" [level=3]
+    - code: mix.hull.level
+    - paragraph: range · readable · writable
+    - status: "Reported value: 0.65"
+    - generic "Target descriptor"
+    - paragraph
+    - text: New value
+    - spinbutton "New value": "0.65"
+    - button "Set"
+  - article:
+    - heading "Hull Drone Frequency" [level=3]
+    - code: mix.hull.frequency
+    - paragraph: range · readable · writable
+    - status: "Reported value: 50"
+    - generic "Target descriptor"
+    - paragraph
+    - text: New value
+    - spinbutton "New value": "50"
+    - button "Set"
+  - article:
+    - heading "Hull Drone Cutoff" [level=3]
+    - code: mix.hull.cutoff
+    - paragraph: range · readable · writable
+    - status: "Reported value: 105"
+    - generic "Target descriptor"
+    - paragraph
+    - text: New value
+    - spinbutton "New value": "105"
+    - button "Set"
+  - article:
+    - heading "Drive / Core Level" [level=3]
+    - code: mix.drive.level
+    - paragraph: range · readable · writable
+    - status: "Reported value: 0.35"
+    - generic "Target descriptor"
+    - paragraph
+    - text: New value
+    - spinbutton "New value": "0.35"
+    - button "Set"
+  - article:
+    - heading "Drive Pulse Rate" [level=3]
+    - code: mix.drive.pulse-rate
+    - paragraph: range · readable · writable
+    - status: "Reported value: 48"
+    - generic "Target descriptor"
+    - paragraph
+    - text: New value
+    - spinbutton "New value": "48"
+    - button "Set"
+  - article:
+    - heading "Drive Carrier Frequency" [level=3]
+    - code: mix.drive.carrier
+    - paragraph: range · readable · writable
+    - status: "Reported value: 58"
+    - generic "Target descriptor"
+    - paragraph
+    - text: New value
+    - spinbutton "New value": "58"
+    - button "Set"
+  - article:
+    - heading "Environmental Airflow Level" [level=3]
+    - code: mix.environment.level
+    - paragraph: range · readable · writable
+    - status: "Reported value: 0.55"
+    - generic "Target descriptor"
+    - paragraph
+    - text: New value
+    - spinbutton "New value": "0.55"
+    - button "Set"
+  - article:
+    - heading "Environmental Filter Cutoff" [level=3]
+    - code: mix.environment.cutoff
+    - paragraph: range · readable · writable
+    - status: "Reported value: 1600"
+    - generic "Target descriptor"
+    - paragraph
+    - text: New value
+    - spinbutton "New value": "1600"
+    - button "Set"
+  - article:
+    - heading "Telemetry Level" [level=3]
+    - code: mix.telemetry.level
+    - paragraph: range · readable · writable
+    - status: "Reported value: 0.45"
+    - generic "Target descriptor"
+    - paragraph
+    - text: New value
+    - spinbutton "New value": "0.45"
+    - button "Set"
+  - article:
+    - heading "Telemetry Density" [level=3]
+    - code: mix.telemetry.density
+    - paragraph: range · readable · writable
+    - status: "Reported value: 0.65"
+    - generic "Target descriptor"
+    - paragraph
+    - text: New value
+    - spinbutton "New value": "0.65"
+    - button "Set"
+  - article:
+    - heading "Futuristic Noise Cancellation Level" [level=3]
+    - code: fnc.level
+    - paragraph: range · readable · writable
+    - status: "Reported value: 0.65"
+    - generic "Target descriptor"
+    - paragraph
+    - text: New value
+    - spinbutton "New value": "0.65"
+    - button "Set"
+  - article:
+    - heading "Futuristic Noise Cancellation Active" [level=3]
+    - code: fnc.enabled
+    - paragraph: state · readable · writable
+    - status: "Reported value: true"
+    - generic "Target descriptor"
+    - paragraph
+    - text: New value
+    - checkbox "New value" [checked]
+    - button "Set"
+  - heading "speech" [level=3]
+  - article:
+    - heading "Speech Robotic Modulation" [level=3]
+    - code: speech.robot-amount
+    - paragraph: range · readable · writable
+    - status: "Reported value: 0.84"
+    - generic "Target descriptor"
+    - paragraph
+    - text: New value
+    - spinbutton "New value": "0.84"
+    - button "Set"
+  - article:
+    - heading "Speak Text Line" [level=3]
+    - code: speech.say
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Generate Ambient AI Announcement" [level=3]
+    - code: speech.generate-announcement
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - heading "observation" [level=3]
+  - article:
+    - heading "Observation Visual Activity" [level=3]
+    - code: view.activity
+    - paragraph: range · readable · writable
+    - status: "Reported value: 0.6"
+    - generic "Target descriptor"
+    - paragraph
+    - text: New value
+    - spinbutton "New value": "0.6"
+    - button "Set"
+  - article:
+    - heading "Observation Viewport Active" [level=3]
+    - code: view.observation
+    - paragraph: state · readable · writable
+    - status: "Reported value: false"
+    - generic "Target descriptor"
+    - paragraph
+    - text: New value
+    - checkbox "New value"
+    - button "Set"
+  - article:
+    - heading "Starship Bezel Frame Framing" [level=3]
+    - code: view.viewport-frame
+    - paragraph: state · readable · writable
+    - status: "Reported value: true"
+    - generic "Target descriptor"
+    - paragraph
+    - text: New value
+    - checkbox "New value" [checked]
+    - button "Set"
+  - heading "transport" [level=3]
+  - article:
+    - heading "Audio Engine Online" [level=3]
+    - code: transport.playing
+    - paragraph: state · readable · writable
+    - status: "Reported value: false"
+    - generic "Target descriptor"
+    - paragraph
+    - text: New value
+    - checkbox "New value"
+    - button "Set"
+  - article:
+    - heading "Master Mute" [level=3]
+    - code: transport.muted
+    - paragraph: state · readable · writable
+    - status: "Reported value: false"
+    - generic "Target descriptor"
+    - paragraph
+    - text: New value
+    - checkbox "New value"
+    - button "Set"
+  - heading "alert" [level=3]
+  - article:
+    - heading "Active Tactical Alert Status" [level=3]
+    - code: alert.active
+    - paragraph: selection · readable · writable
+    - status: "Reported value: \"none\""
+    - generic "Target descriptor"
+    - paragraph
+    - text: New value
+    - combobox "New value":
+      - option "Condition Green (Normal)" [selected]
+      - option "Yellow Alert"
+      - option "Red Alert"
+    - button "Set"
+  - heading "universe" [level=3]
+  - article:
+    - heading "Active Sci-Fi Universe" [level=3]
+    - code: universe.selected
+    - paragraph: selection · readable · writable
+    - status: "Reported value: \"starfleet\""
+    - generic "Target descriptor"
+    - paragraph
+    - text: New value
+    - combobox "New value":
+      - option "Starfleet / Galaxy" [selected]
+      - option "Whataverse / Tardix"
+      - option "Industrial / Weyland"
+      - option "Bioships / Leviathan"
+      - option "Retro Future / 1960s"
+      - option "Colonial Military"
+      - option "Deep Space Generation"
+      - option "Frontier & Salvage"
+      - option "Orbital Stations & Docks"
+      - option "Whimsical Fleet"
+    - button "Set"
+  - heading "preset" [level=3]
+  - article:
+    - heading "Active Audio Preset" [level=3]
+    - code: preset.selected
+    - paragraph: selection · readable · writable
+    - status: "Reported value: \"tng-bridge\""
+    - generic "Target descriptor"
+    - paragraph
+    - text: New value
+    - combobox "New value":
+      - 'option "Interprise-G: Main Bridge" [selected]'
+      - 'option "Interprise-G: Main Engineering"'
+      - 'option "Interprise-G: Crew Quarters"'
+      - 'option "USS Wayfarer: Bridge"'
+      - 'option "USS Wayfarer: Class-N Worp Core"'
+      - 'option "USS Defiance: Tactical Bridge"'
+      - 'option "Deep Space 8: Ops Center"'
+      - 'option "Interprise NCC-1701.5: Bridge (TOS)"'
+      - 'option "Interprise NCC-1701.5: Engineering (TOS)"'
+      - 'option "Interprise NS-01: Command Bridge"'
+      - option "1962 Classic Console (1st / 2nd Doctors)"
+      - option "Edwardian Secondary Console (4th Doctor)"
+      - option "The Coral Living TARDIX (9th / 10th Doctors)"
+      - option "The Bronze Workshop (11th Doctor)"
+      - option "The Cool Machine (12th Doctor)"
+      - option "The Humming Crystal Console (13th Doctor)"
+      - option "The Endless White (14th / 15th Doctors)"
+      - 'option "USCSS Nostramo: Ore Refinery Bridge"'
+      - 'option "Serenety: Firewing-Class Cargo Hold"'
+      - 'option "Red Dwarve: Main Drive Corridor"'
+      - 'option "Starbug Z: Cockpit Environment"'
+      - 'option "The Rasa: Dark Matter Bridge"'
+      - 'option "Rocinanta: Combat Ops & Epsilon Drive"'
+      - 'option "Hawk Translocator: Command Module"'
+      - 'option "Valley Foundry: Agro-Dome Forest Hub"'
+      - 'option "Meya: Leviathon Central Nexus"'
+      - 'option "Talym: Gunship Neural Bridge"'
+      - 'option "The Lexxi: Primary Organ Bridge"'
+      - 'option "Vorlan Cruiser: Sentient Core"'
+      - 'option "Wraithe Hive Ship: Throne Chamber"'
+      - 'option "Species 8675309: Fluid Bioship"'
+      - 'option "Jupiter Duece: Upper Deck Astrogator"'
+      - 'option "The Liberation: Zen Flight Bridge"'
+      - 'option "USS Cygnis: Victorian Engine Hall"'
+      - 'option "USS Palomina: Deep Research Pod"'
+      - 'option "Discovery Zero: Habitation Centrifuge"'
+      - 'option "Dim Star: Bomb Bay & Quarters"'
+      - 'option "Gunstarr: Tactical Combat Cockpit"'
+      - 'option "The Seeker: 25th Century Flagship"'
+      - 'option "USS Solaco: Conestega Hangar Deck"'
+      - 'option "Battlestar Galactica: Combat Information Center (CIC)"'
+      - 'option "Pale Star: Minbara/Vorlan Hybrid Bridge"'
+      - 'option "EAS Agamemnon II: Omega Destroyer Bridge"'
+      - 'option "Andromeda Ascending: Command Deck"'
+      - 'option "Excaliber: Triumph-Class Heavy Combat Core"'
+      - 'option "Colonial Adder Mk II: Cockpit Atmosphere"'
+      - 'option "The Avalin: Interstellar Cruise Concourse"'
+      - 'option "The Nightflier: Telepathic Corridor"'
+      - 'option "USS Ascention: Generation Ship Promenade"'
+      - 'option "Ark Zero: Evacuation Ark Bridge"'
+      - 'option "Icarus I: Solar Shield Core"'
+      - 'option "Event Boundary: Gravity Singularity Core"'
+      - 'option "Lewis & Clarke: Rescue Cutter Bridge"'
+      - 'option "The Betsy: Salvage Freighter Mess"'
+      - 'option "BeBoppa: Living Quarters & Hangar"'
+      - 'option "Outlaw Sun: Grapple Bridge"'
+      - 'option "Scorpius: Wanderer Salvage Vessel"'
+      - 'option "The Raider: Havoc Shuttle Bridge"'
+      - 'option "The Milan: M-Ship Cockpit Lounge"'
+      - 'option "Babylon 4: Core Control & Zocolo"'
+      - 'option "Moonbase Beta: Main Mission Control"'
+      - 'option "Sebastopol Station: Habitation Deck"'
+      - 'option "Tyco Station: Asteroid Construction Bay"'
+      - 'option "Ceres Minor Station: Sub-Crustal Tunnels"'
+      - 'option "Gatehouse Station: Quarantine Transfer Deck"'
+      - 'option "USS Norval: Command Bridge"'
+      - 'option "NSEA Protractor: Beryllium Orb Engine Room"'
+      - 'option "Heart of Silver: Unlikelihood Bridge"'
+      - 'option "HMS Camden Key: Flight Deck & Mess"'
+      - 'option "Spaceorb One: Mega-Warship Bridge"'
+    - button "Set"
+  - heading "display" [level=3]
+  - article:
+    - heading "Display Ticker Message (Transient)" [level=3]
+    - code: display.ticker
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - heading "event" [level=3]
+  - article:
+    - heading "Red Alert Impulse" [level=3]
+    - code: event.alert-red
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Warp Jump Impulse" [level=3]
+    - code: event.warp-jump
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Demat Cycle Impulse" [level=3]
+    - code: event.demat
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Time Vortex Impulse" [level=3]
+    - code: event.vortex
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Cloister Bell Impulse" [level=3]
+    - code: event.cloister
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Flak Barrage Impulse" [level=3]
+    - code: event.flak-barrage
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "FTL Jump Impulse" [level=3]
+    - code: event.ftl-jump
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Singularity Engage Impulse" [level=3]
+    - code: event.singularity
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Solar Flare Roar Impulse" [level=3]
+    - code: event.solar-roar
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Afterburner Ignite Impulse" [level=3]
+    - code: event.afterburner
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Ludicrous Speed Impulse" [level=3]
+    - code: event.ludicrous-speed
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Improbability Drive Flip" [level=3]
+    - code: event.improbability-flip
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - heading "sfx" [level=3]
+  - article:
+    - heading "Comm Badge Chime" [level=3]
+    - code: sfx.comm-badge
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Pneumatic Door Swish" [level=3]
+    - code: sfx.door-swish
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Bosun Pipe Call" [level=3]
+    - code: sfx.bosun-whistle
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Medical Vital Monitor" [level=3]
+    - code: sfx.medical-monitor
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Heavy Bulkhead Door" [level=3]
+    - code: sfx.cardassian-door
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Turbochute Whoosh" [level=3]
+    - code: sfx.turbolift
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Fabricator Materialize" [level=3]
+    - code: sfx.replicator
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Translocator Beam" [level=3]
+    - code: sfx.transporter
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Console Single Chirp" [level=3]
+    - code: sfx.console-chirp
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Sonic Acoustic Screwdriver" [level=3]
+    - code: sfx.sonic
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Console Mechanical Lever Clunk" [level=3]
+    - code: sfx.lever-clunk
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Tardix Wood & Lock Door" [level=3]
+    - code: sfx.tardix-door
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Demat Switch Rotor" [level=3]
+    - code: sfx.demat-switch
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Telepathic Circuit Chime" [level=3]
+    - code: sfx.telepathic-chime
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Air Handler Valve Thud" [level=3]
+    - code: sfx.air-handler
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Mag-Boot Solenoid Latch" [level=3]
+    - code: sfx.mag-boot
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Comlock Electronic Tone" [level=3]
+    - code: sfx.comlock
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Solar Radiation Wind" [level=3]
+    - code: sfx.solar-roar
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Cassette Magnetic Transport Clunk" [level=3]
+    - code: sfx.tape-clunk
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Thruster Burner Pulse" [level=3]
+    - code: sfx.afterburner
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Radiation Geiger Counter" [level=3]
+    - code: sfx.geiger
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Air Valve & Dock Clamp" [level=3]
+    - code: sfx.dock-clamp
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "Dradis Combat Sonar Ping" [level=3]
+    - code: sfx.dradis-ping
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - article:
+    - heading "HAL Logic Melodic Chime" [level=3]
+    - code: sfx.hal-chime
+    - paragraph: impulse · not readable · not writable
+    - status: No persistent value reported.
+    - generic "Target descriptor"
+    - paragraph
+    - button "Invoke"
+  - heading "Presentation surfaces" [level=2]: Presentation surfaces
+  - paragraph: Open Contract 5.3 presentation surfaces locally below. URLs resolve against the supplying exhibit. Disconnecting or switching exhibits closes these views. Remote/cast displays remain deferred.
+  - paragraph: No presentation surfaces advertised.
+  - heading "State and metadata" [level=2]
+  - button "Refresh state"
+  - generic "Session and exhibit metadata"
+  - generic "Current persistent state"
+  - heading "Protocol diagnostics" [level=2]
+  - generic "Incoming events"
+  - generic "Protocol and errors"