feat(labs): visual polish wave — LabFX foundation + 33 sims juiced up

ФУНДАМЕНТ (4 новых файла):
- _fx_core.js: LabFX namespace, glow.drawGlow, glow.pulse, haptic, shake
- _fx_particles.js: пул 1500 объектов, 6 shapes (dot/spark/ring/smoke/splash/dust)
- _fx_motion.js: tween + 12 easings + critically-damped spring
- _fx_sound.js: 9 procedural synth-звуков (click/tick/whoosh/chime/fizz/spark/bounce/pour/drone), Web Audio API
- Sound toggle в шапке lab.html с localStorage-persist

UX МИКРО (CSS + JS):
- Button states: hover scale+brightness, active scale-down, disabled grayscale
- Slider polish: custom thumb с тенью, filled-track gradient, hover/active
- Focus rings через :focus-visible
- Tooltip system .tt-host data-tt= с 400ms hover, fade-in
- Marching ants для selection
- Loading skeleton с shimmer
- Empty state .sim-empty-* паттерн
- Toast: progress bar внизу, icons по типу
- Cursor states utility classes
- View Transitions API для smooth sim-switch, fallback на CSS fade

PHASE 2 — визуальные эффекты для 33 симуляций:

Physics motion: projectile (launch whoosh + landing splash/shake/haptic + target chime), pendulum (max-extension tick + bob glow), collision (bounce + sparks + shake), angrybirds (whoosh/bounce/fizz/chime + confetti), newton (rocket flame trail + scene transitions), forcesandbox (spring glow + impact sparks)

Physics fields: emfield (field-lines glow + particle trail + lightning при high field + Gauss-drag haptic + rod motion sparks), circuit (energized-wire glow ∝ current + LED bloom + short-circuit shake/spark + heat shimmer smoke + place/erase/switch sounds), opticsbench (beam glow на всех режимах + caustics dust у фокуса + TIR/Brewster one-shot sounds)

Thermo+waves: waves (mode-switch whoosh + Mach-cone particles + spectrum harmonic chime + waveform glow), hydrostatics (pour sound + splash при погружении + valve click), isoprocess (PV-trail dust), heatengine (drone цикла + hot/cold reservoir smoke/dust + phase-change ticks), radioactive (Geiger tick throttle + decay sparks + half-life chime + α/β/γ glow)

Chemistry: chemsandbox (pour splash + fizz bubbles/dust/spark по типу реакции + shake при горении), equilibrium/electrolysis/reactions/titration/flask/ionexchange/redox (pour/fizz/spark/chime по событиям, частицы при ключевых моментах), stoichiometry (fizz bubbles + recipe-change click)

Math+geom: geometry (tool-click + object-create tick + locus glow + challenge confetti via LabFX + haptic), triangle (vertex-drop tick + special-point glow), stereo (figure-change whoosh + cross-section chime, no particles — Three.js), trigcircle (drag-haptic + pitch∝angle tick + sin/cos glow), graph/graphtransform/quadratic (slider-tick throttled + curve glow + discriminant-cross chime), probability (bounce + finish-chime burst), normaldist (pulsing shade + bell glow)

Bio+misc: celldivision (phase-change whoosh + prophase dust + anaphase poles spark + cytokinesis chime), photosynthesis (photon tick + ATP chime + glucose sparkle), bohratom (electron-jump chime ∝ levels + photon spark), orbitals/crystal (mode-change whoosh — Three.js, sound only), logic (gate-place + wire-connect + LED bloom + HIGH wire flowing dots + preset chime), gas/brownian/diffusion/states (preset whoosh, throttled tick по событиям)

Все LabFX вызовы обёрнуты в if (window.LabFX) guard — graceful degradation если фундамент не загружен. 47 JS файлов прошли syntax check.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

frontend/js/labs/graphtransform.js

@@ -141,7 +141,13 @@ class GraphTransformSim {
     this._drawGrid(ctx, W, H);
     this._drawAxes(ctx, W, H);
     this._drawCurve(ctx, W, H, x => this._fBase(x), 'rgba(255,255,255,0.18)', 2); // original faded
-    this._drawCurve(ctx, W, H, x => this._fTransformed(x), '#9B5DE5', 2.5);       // transformed bold
+    if (window.LabFX) {
+      LabFX.glow.drawGlow(ctx, () => {
+        this._drawCurve(ctx, W, H, x => this._fTransformed(x), '#9B5DE5', 2.5);
+      }, { color: '#9B5DE5', intensity: 4 });
+    } else {
+      this._drawCurve(ctx, W, H, x => this._fTransformed(x), '#9B5DE5', 2.5);
+    }
     this._drawEquation(ctx, W, H);
     if (this.hx !== null) this._drawHover(ctx, W, H);
   }
@@ -374,10 +380,16 @@ class GraphTransformSim {
     }));
   }
 
+  let _gtSoundTs = 0;
   function gtParam(name, val) {
     const v = parseFloat(val);
     document.getElementById('gt-' + name + '-val').textContent = v % 1 === 0 ? v : v.toFixed(1);
     if (gtSim) gtSim.setParams({ [name]: v });
+    const now = performance.now();
+    if (window.LabFX && now - _gtSoundTs > 80) {
+      _gtSoundTs = now;
+      LabFX.sound.play('tick', { volume: 0.1 });
+    }
   }
 
   function gtBase(name, btn) {
@@ -392,6 +404,7 @@ class GraphTransformSim {
     document.getElementById('sl-gt-b').value = b; document.getElementById('gt-b-val').textContent = b;
     document.getElementById('sl-gt-c').value = c; document.getElementById('gt-c-val').textContent = c;
     if (gtSim) gtSim.setParams({ a, k, b, c });
+    if (window.LabFX) LabFX.sound.play('whoosh', { volume: 0.3 });
   }
 
   function _gtUpdateUI(info) {