refactor(mq_editor): consolidate duplicates, extract utils.js and app.js

- utils.js (new): evalBezier (robust), getCanvasCoords, buildBandPoints
- app.js (new): extract ~450-line inline script from index.html
- editor.js: generalize _makeJogSlider(inp, options) with onUpdate cb,
  eliminate 50-line inline resonator jog duplication, use getCanvasCoords
- mq_extract.js: extract findBestPeak(), replace two identical loop bodies
- viewer.js: remove duplicate evalBezier, use getCanvasCoords/buildBandPoints
- mq_synth.js: remove duplicate evalBezier
- index.html: inline script removed, load order: utils→fft→extract→synth→viewer→editor→app

handoff(Claude): mq_editor refactor complete — no logic changes, browser-ready.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

1 files changed, 0 insertions, 13 deletions

diff --git a/tools/mq_editor/mq_synth.js b/tools/mq_editor/mq_synth.js
index 2d4cf1b..4c68056 100644
--- a/tools/mq_editor/mq_synth.js
+++ b/tools/mq_editor/mq_synth.js
@@ -1,19 +1,6 @@
 // MQ Synthesizer
 // Replica oscillator bank for sinusoidal synthesis, plus two-pole resonator mode
 
-// Evaluate cubic bezier curve at time t
-function evalBezier(curve, t) {
-  const dt = curve.t3 - curve.t0;
-  if (dt <= 0) return curve.v0;
-  let u = (t - curve.t0) / dt;
-  u = Math.max(0, Math.min(1, u));
-  const u1 = 1.0 - u;
-  return u1*u1*u1 * curve.v0 +
-         3*u1*u1*u * curve.v1 +
-         3*u1*u*u  * curve.v2 +
-         u*u*u     * curve.v3;
-}
-
 // Deterministic LCG PRNG
 function randFloat(seed, min, max) {
   seed = (1664525 * seed + 1013904223) % 0x100000000;