fix(qa): repoint stale mutation anchors after the September refactors

The three mutation gates matched source text that has since moved or been
reflowed, so 37 of their 108 reverts reported STALE and could no longer
prove anything:

- qa-floorhold-mutations (2): the neighbour-floor code moved from
  src/data/groundFloor.js into src/services/groundFloor.js (ac977bd).
- qa-flyroute-mutations (8): src/cameraVerbs.js was reflowed by the
  formatter (2aca7ae); the anchors now match the formatted lines.
- qa-firstrun-mutations (27): the launcher markup, styles and startup moved
  to src/ui/templates/welcome.html, src/ui/styles/first-run.css and
  src/app/startupChrome.js; the rail default to panelPositionControls.js and
  the radio ESC handling to radioBindings.js (a67bc60 and follow-ups). The
  tool-schema pin now edits a tool description, since the context-mode enum
  it used to edit no longer lives in tools.js.

Every revert still reintroduces the same defect. Results: floor-hold 22/22,
fly_route 19/19, first-run 67/67 caught, with all source files restored.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

scripts/qa-flyroute-mutations.mjs

@@ -35,17 +35,17 @@ const MUTATIONS = [
   },
   {
     defect: 'heading lerps in Cartesian space and cannot cross a U-turn',
-    from: '    const turned = Cesium.Matrix3.multiplyByVector(rotation, state.headingDir, _frameDir);',
+    from: '    const turned = Cesium.Matrix3.multiplyByVector(\n      rotation,\n      state.headingDir,\n      _frameDir,\n    );',
     to: '    const turned = Cesium.Cartesian3.lerp(state.headingDir, gaze, k, _frameDir);',
   },
   {
     defect: 'the exact-180° bank direction becomes a floating-point coin toss',
-    from: '  if (cosTurn <= -1 + ANTIPODAL_EPS && Math.abs(sinLeft) < ANTIPODAL_EPS) return Math.PI;',
+    from: '  if (cosTurn <= -1 + ANTIPODAL_EPS && Math.abs(sinLeft) < ANTIPODAL_EPS)\n    return Math.PI;',
     to: '  // branch removed',
   },
   {
     defect: 'a cold cell is read as sea level (the 1.3 km underground bug)',
-    from: '    state.floorM = Number.isFinite(state.floorM) ? state.floorM : state.coldSeedFloorM;',
+    from: '    state.floorM = Number.isFinite(state.floorM)\n      ? state.floorM\n      : state.coldSeedFloorM;',
     to: '    state.floorM = carto.height;',
   },
   {
@@ -55,12 +55,12 @@ const MUTATIONS = [
   },
   {
     defect: 'the dolly races the fire-and-forget warm instead of arming for it',
-    from: '  if (canAnswer && !state.floorKnown && !state.departed && state.armS < ROUTE_ARM_S) {',
+    from: '  if (\n    canAnswer &&\n    !state.floorKnown &&\n    !state.departed &&\n    state.armS < ROUTE_ARM_S\n  ) {',
     to: '  if (false) {',
   },
   {
     defect: 'no mesh probe, so a permanently cold DEM is flown blind',
-    from: '  if (cold.length && !state.meshProbeSpent && typeof state.probeFn === \'function\') {',
+    from: '  if (\n    cold.length &&\n    !state.meshProbeSpent &&\n    typeof state.probeFn === \'function\'\n  ) {',
     to: '  if (false) {',
   },
   {
@@ -90,8 +90,8 @@ const MUTATIONS = [
   },
   {
     defect: 'the mesh probe fires every arming frame instead of once per route',
-    from: '  if (cold.length && !state.meshProbeSpent && typeof state.probeFn === \'function\') {\n    state.meshProbeSpent = true;',
-    to: '  if (cold.length && typeof state.probeFn === \'function\') {\n    state.meshProbeSpent = true;',
+    from: '    cold.length &&\n    !state.meshProbeSpent &&\n    typeof state.probeFn === \'function\'\n  ) {\n    state.meshProbeSpent = true;',
+    to: '    cold.length &&\n    typeof state.probeFn === \'function\'\n  ) {\n    state.meshProbeSpent = true;',
   },
   {
     defect: 'one warm cell resolves a corridor whose other cells are unknown',
@@ -105,13 +105,13 @@ const MUTATIONS = [
   },
   {
     defect: 'the hard clearance clamp reads the SMOOTHED floor, not the raw sample',
-    from: '    (Number.isFinite(sampledFloor) ? sampledFloor : state.floorM) + ROUTE_MIN_CLEARANCE_M,',
+    from: '    (Number.isFinite(sampledFloor) ? sampledFloor : state.floorM) +\n      ROUTE_MIN_CLEARANCE_M,',
     to: '    state.floorM + ROUTE_MIN_CLEARANCE_M,',
   },
   {
     defect: 'levelling also RE-FRAMES the camera (destination passed with the HPR)',
-    from: '    cam.setView({ orientation: { heading: cam.heading, pitch: cam.pitch, roll: 0 } });',
-    to: '    cam.setView({ destination: Cesium.Cartesian3.fromDegrees(0, 0, 5000), orientation: { heading: cam.heading, pitch: cam.pitch, roll: 0 } });',
+    from: '    cam.setView({\n      orientation: { heading: cam.heading, pitch: cam.pitch, roll: 0 },\n    });',
+    to: '    cam.setView({\n      destination: Cesium.Cartesian3.fromDegrees(0, 0, 5000),\n      orientation: { heading: cam.heading, pitch: cam.pitch, roll: 0 },\n    });',
   },
   {
     defect: 'the OS reduced-motion preference is never consulted',