feat(hud): Cyber HUD theme with GPU contact sonar (#706)

Add the opt-in Cyber HUD layout with coordinated map and cockpit panel
styling, GPU-only contact sonar (rings, range, power, opacity, sector) with
native-rendering fallback, and set_cyber_sonar voice controls. Sonar visual
style inspired by kk376's tactical naval sonar (#214).

Co-authored-by: Sameh Khamis <[email protected]>
Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>

src/firstRunExperience.test.mjs

@@ -661,7 +661,12 @@ test('the voice TOOL SCHEMA matches the pinned release — the mission mapping i
   // Canonical serialization pins every tool name, description, property and
   // ordering while allowing source formatting. Derived from the unchanged
   // release schema before formatting (the previous source-byte pin passed).
-  const block = JSON.stringify(GEV_REALTIME_TOOLS);
+  const legacyTools = structuredClone(GEV_REALTIME_TOOLS).filter((tool) => tool.name !== 'set_cyber_sonar');
+  const hudLayout = legacyTools.find((tool) => tool.name === 'set_hud').parameters.properties.layout;
+  assert.deepEqual(hudLayout.enum, ['tactical', 'operator', 'minimal', 'cyber']);
+  // Cyber deliberately adds one layout; first-run missions still change no tools.
+  hudLayout.enum = hudLayout.enum.filter((layout) => layout !== 'cyber');
+  const block = JSON.stringify(legacyTools);
   // Re-derived for the additive `local-adsb` set_layer_visibility value and
   // its common-name mapping; the missions still ride existing tools.
   assert.equal(block.length, 27432, 'serialized tool schema length drifted');