refactor(gallery): extract controls R27-R29, R32-R34, R37, R38 into GW builders

Winged gain selector, rotary disc switch, guarded toggle, mechanical timer dial, four-way rocker, four-way toggle selector, pin routing matrix, and dead-man button. The timer dial keeps its reduced-motion-gated 1 Hz wind-down inside the builder — it's widget behavior, not a gallery meter loop. discRed moves to the shared defs so the guarded toggle renders standalone. Behavioral pass now 96 checks; both probes green.

1 files changed, 333 insertions, 0 deletions

diff --git a/docs/prototypes/widgets.js b/docs/prototypes/widgets.js
index cd74771..f213518 100644
--- a/docs/prototypes/widgets.js
+++ b/docs/prototypes/widgets.js
@@ -1139,6 +1139,339 @@ GW.stompSwitch = function (host, opts = {}) {
   return { el: s, get: () => on, set };
 };
 
+/* R27 winged gain selector — red T-bar over a dot ring, stepped detents */
+GW.wingSelector = function (host, opts = {}) {
+  const onChange = opts.onChange || noop;
+  const steps = opts.steps || [-80, -70, -60, -50, -40, -30, -20, -10, -5, 0, 5, 10];
+  const s = stageSvg(host, 'rsvg drag', 110, 110), cx = 55, cy = 52;
+  gradDef('wingRed', 'radialGradient', { cx: '40%', cy: '32%', r: '80%' }, [['0', '#d98a6f'], ['.6', 'var(--fail)'], ['1', '#6e2415']]);
+  steps.forEach((db, i) => {
+    const a = -135 + i / (steps.length - 1) * 270;
+    const [dx, dy] = polar(cx, cy, 38, a);
+    svgEl(s, 'circle', { cx: dx, cy: dy, r: 1.5, fill: 'var(--steel)' });
+    if (i % 2 === 1 || db === 0 || db === 10 || db === -80) {
+      const [tx, ty] = polar(cx, cy, 46.5, a);
+      svgEl(s, 'text', { x: tx, y: ty + 2.2, 'text-anchor': 'middle', 'font-size': 5.5, 'font-family': 'var(--mono)', fill: 'var(--steel)' }).textContent = db > 0 ? '+' + db : db;
+    }
+  });
+  const grp = svgEl(s, 'g', {}); grp.style.transition = 'transform .09s';
+  svgEl(grp, 'rect', { x: cx - 6.5, y: cy - 30, width: 13, height: 60, rx: 6, fill: 'url(#wingRed)', stroke: '#4e150a', 'stroke-width': .8 });
+  svgEl(grp, 'circle', { cx, cy, r: 15, fill: 'url(#wingRed)', stroke: '#4e150a', 'stroke-width': .8 });
+  svgEl(grp, 'line', { x1: cx, y1: cy - 28, x2: cx, y2: cy - 18, stroke: 'var(--cream)', 'stroke-width': 2, 'stroke-linecap': 'round' });
+  svgEl(grp, 'ellipse', { cx: cx - 4, cy: cy - 8, rx: 5, ry: 3, fill: 'rgba(255,255,255,.18)', transform: `rotate(-30,${cx - 4},${cy - 8})` });
+  let idx;
+  const set = v => {
+    idx = Math.max(0, Math.min(steps.length - 1, Math.round(v)));
+    grp.style.transform = `rotate(${-135 + idx / (steps.length - 1) * 270}deg)`;
+    grp.style.transformOrigin = `${cx}px ${cy}px`;
+    const db = steps[idx];
+    onChange(db, (db > 0 ? '+' : '') + db + ' dB');
+  };
+  dragDelta(s, () => idx, set, { min: 0, max: steps.length - 1, sens: .05 });
+  set(opts.index !== undefined ? opts.index : 7);
+  return { el: s, get: () => idx, set };
+};
+
+/* R28 rotary disc switch — the whole disc turns between heavy positions */
+GW.discSwitch = function (host, opts = {}) {
+  const onChange = opts.onChange || noop;
+  const positions = opts.positions || [['OFF', -45], ['ON', 45], ['COMBINE', 135]];
+  const s = stageSvg(host, 'rsvg press', 110, 116), cx = 55, cy = 58;
+  gradDef('discRed', 'radialGradient', { cx: '42%', cy: '34%', r: '85%' }, [['0', '#d98a6f'], ['.65', 'var(--fail)'], ['1', '#7a2a1a']]);
+  gradDef('sfScrew', 'radialGradient', { cx: '40%', cy: '35%', r: '75%' }, [['0', '#9b968a'], ['1', '#4a463e']]);
+  svgEl(s, 'circle', { cx, cy, r: 48, fill: '#1a1714', stroke: '#060505', 'stroke-width': 1.5 });
+  for (let k = 0; k < 4; k++) {
+    const [x, y] = polar(cx, cy, 44, 45 + k * 90);
+    svgEl(s, 'circle', { cx: x, cy: y, r: 2.6, fill: 'url(#sfScrew)', stroke: '#0a0908', 'stroke-width': .5 });
+  }
+  const lbls = positions.map(([lbl, a]) => {
+    const [tx, ty] = polar(cx, cy, 42, a);
+    const t = svgEl(s, 'text', { x: tx, y: ty + 2.4, 'text-anchor': 'middle', 'font-size': 5.8, 'letter-spacing': '.06em', 'font-family': 'var(--mono)', fill: 'var(--dim)' });
+    t.textContent = lbl; return t;
+  });
+  svgEl(s, 'circle', { cx, cy, r: 36, fill: 'url(#discRed)', stroke: '#4e150a', 'stroke-width': 1 });
+  const grp = svgEl(s, 'g', {}); grp.style.transition = 'transform .15s'; grp.style.transformOrigin = `${cx}px ${cy}px`;
+  svgEl(grp, 'rect', { x: cx - 27, y: cy - 8, width: 54, height: 16, rx: 8, fill: 'url(#discRed)', stroke: '#8f3520', 'stroke-width': 1 });
+  svgEl(grp, 'rect', { x: cx - 25, y: cy - 6.5, width: 50, height: 4, rx: 2, fill: 'rgba(255,255,255,.16)' });
+  svgEl(grp, 'line', { x1: cx + 20, y1: cy, x2: cx + 26, y2: cy, stroke: 'var(--cream)', 'stroke-width': 2.5, 'stroke-linecap': 'round' });
+  svgEl(s, 'ellipse', { cx: cx - 12, cy: cy - 14, rx: 12, ry: 6, fill: 'rgba(255,255,255,.10)', transform: `rotate(-28,${cx - 12},${cy - 14})` });
+  let idx;
+  const set = i => {
+    idx = i;
+    grp.style.transform = `rotate(${positions[i][1]}deg)`;
+    lbls.forEach((t, k) => t.setAttribute('fill', k === i ? 'var(--gold-hi)' : 'var(--dim)'));
+    onChange(idx, positions[i][0]);
+  };
+  s.addEventListener('click', () => set((idx + 1) % positions.length));
+  set(opts.index !== undefined ? opts.index : 1);
+  return { el: s, get: () => idx, set };
+};
+
+/* R29 guarded toggle — guard posts + red collar mark the critical throw */
+GW.guardedToggle = function (host, opts = {}) {
+  const onChange = opts.onChange || noop;
+  const s = stageSvg(host, 'rsvg press', 90, 100), cx = 45, cy = 52;
+  gradDef('discRed', 'radialGradient', { cx: '42%', cy: '34%', r: '85%' }, [['0', '#d98a6f'], ['.65', 'var(--fail)'], ['1', '#7a2a1a']]);
+  gradDef('nutG', 'linearGradient', { x1: 0, y1: 0, x2: 0, y2: 1 }, [['0', '#8a8578'], ['1', '#4e4a42']]);
+  gradDef('chromeG', 'linearGradient', { x1: 0, y1: 0, x2: 1, y2: 0 }, [['0', '#7e7a70'], ['.45', '#e8e5db'], ['1', '#8a867c']]);
+  gradDef('tipG', 'radialGradient', { cx: '40%', cy: '32%', r: '75%' }, [['0', '#f2efe8'], ['1', '#7e7a70']]);
+  const lblOn = svgEl(s, 'text', { x: cx, y: 12, 'text-anchor': 'middle', 'font-size': 7, 'letter-spacing': '.1em', 'font-family': 'var(--mono)', fill: 'var(--gold-hi)' });
+  lblOn.textContent = opts.onLabel || 'ON';
+  const lblOff = svgEl(s, 'text', { x: cx, y: 96, 'text-anchor': 'middle', 'font-size': 7, 'letter-spacing': '.1em', 'font-family': 'var(--mono)', fill: 'var(--dim)' });
+  lblOff.textContent = opts.offLabel || 'OFF';
+  svgEl(s, 'circle', { cx, cy, r: 13, fill: 'url(#discRed)', stroke: '#4e150a', 'stroke-width': 1 });
+  const pts = []; for (let k = 0; k < 6; k++) { const a = (k * 60 + 30) * Math.PI / 180; pts.push((cx + 11 * Math.cos(a)) + ',' + (cy + 11 * Math.sin(a))); }
+  svgEl(s, 'polygon', { points: pts.join(' '), fill: 'url(#nutG)', stroke: '#2b2822' });
+  svgEl(s, 'circle', { cx, cy, r: 6, fill: '#14110e', stroke: '#000' });
+  for (const gx of [16, 74]) {
+    svgEl(s, 'rect', { x: gx - 6, y: cy - 24, width: 12, height: 48, rx: 6, fill: 'url(#nutG)', stroke: '#2b2822', 'stroke-width': 1 });
+    svgEl(s, 'rect', { x: gx - 4, y: cy - 21, width: 3.5, height: 42, rx: 2, fill: 'rgba(255,255,255,.14)' });
+  }
+  const lever = svgEl(s, 'g', {});
+  svgEl(lever, 'path', { d: `M ${cx - 3} ${cy} L ${cx - 2} 26 L ${cx + 2} 26 L ${cx + 3} ${cy} Z`, fill: 'url(#chromeG)', stroke: '#4e4a42', 'stroke-width': .5 });
+  svgEl(lever, 'rect', { x: cx - 4.5, y: 16, width: 9, height: 12, rx: 2, fill: 'url(#tipG)', stroke: '#5e5a52', 'stroke-width': .6 });
+  for (let r = 0; r < 4; r++) svgEl(lever, 'line', { x1: cx - 3.5, y1: 18.5 + r * 2.4, x2: cx + 3.5, y2: 18.5 + r * 2.4, stroke: 'rgba(0,0,0,.25)', 'stroke-width': .8 });
+  lever.style.transformOrigin = `${cx}px ${cy}px`; lever.style.transition = 'transform .12s';
+  let on;
+  const set = v => {
+    on = !!v;
+    lever.style.transform = on ? 'rotate(0deg)' : 'rotate(180deg)';
+    lblOn.setAttribute('fill', on ? 'var(--gold-hi)' : 'var(--dim)');
+    lblOff.setAttribute('fill', on ? 'var(--dim)' : 'var(--gold-hi)');
+    onChange(on, on ? 'ON' : 'OFF');
+  };
+  s.addEventListener('click', () => set(!on));
+  set(opts.on !== undefined ? opts.on : true);
+  return { el: s, get: () => on, set };
+};
+
+/* R32 mechanical timer dial — dial rotates under a fixed index; wind by drag, stop by the red knob.
+   Runs its own 1 Hz wind-down (a demo minute per second) unless reduced motion is set. */
+GW.timerDial = function (host, opts = {}) {
+  const onChange = opts.onChange || noop;
+  const s = stageSvg(host, 'rsvg', 158, 132), cx = 62, cy = 58;
+  gradDef('mtFace', 'radialGradient', { cx: '50%', cy: '42%', r: '75%' }, [['0', '#282320'], ['1', '#14110e']]);
+  gradDef('mtRed', 'radialGradient', { cx: '38%', cy: '32%', r: '80%' }, [['0', '#e0523a'], ['1', '#8f2416']]);
+  gradDef('mtHub', 'linearGradient', { x1: 0, y1: 0, x2: 0, y2: 1 }, [['0', '#c9c4b8'], ['1', '#6e685c']]);
+  /* bezel + knurled coin edge */
+  svgEl(s, 'circle', { cx, cy, r: 50, fill: '#17140f', stroke: '#060505', 'stroke-width': 2 });
+  svgEl(s, 'circle', { cx, cy, r: 47.5, fill: 'none', stroke: '#3a352c', 'stroke-width': 4, 'stroke-dasharray': '2 1.6' });
+  svgEl(s, 'circle', { cx, cy, r: 44, fill: 'url(#mtFace)', stroke: '#0a0908', 'stroke-width': 1 });
+  /* rotating scale: OFF at 0, minutes climb clockwise at 4.5 deg/min (60 at 270) */
+  const rot = svgEl(s, 'g', {});
+  for (let m = 0; m <= 60; m += 5) {
+    const major = m % 20 === 0;
+    const [x1, y1] = polar(cx, cy, 40, m * 4.5), [x2, y2] = polar(cx, cy, major ? 34 : 37, m * 4.5);
+    svgEl(rot, 'line', { x1, y1, x2, y2, stroke: 'var(--cream)', 'stroke-width': major ? 1.2 : .55, opacity: major ? .9 : .55 });
+  }
+  for (const m of [20, 40, 60]) {
+    const [x, y] = polar(cx, cy, 27, m * 4.5);
+    svgEl(rot, 'text', { x, y: y + 3, 'text-anchor': 'middle', 'font-size': 9, 'font-weight': 700, 'font-family': 'var(--mono)', fill: 'var(--cream)' }).textContent = String(m);
+  }
+  const [ox, oy] = polar(cx, cy, 27, 0);
+  svgEl(rot, 'text', { x: ox, y: oy + 3, 'text-anchor': 'middle', 'font-size': 7.5, 'font-weight': 700, 'font-family': 'var(--mono)', fill: '#e0523a' }).textContent = 'OFF';
+  const [mx, my] = polar(cx, cy, 16, 180);
+  svgEl(rot, 'text', { x: mx, y: my + 2.5, 'text-anchor': 'middle', 'font-size': 5.4, 'letter-spacing': '.14em', 'font-family': 'var(--mono)', fill: 'var(--steel)' }).textContent = 'MINUTES';
+  /* hub with screw slot */
+  svgEl(s, 'circle', { cx, cy, r: 9, fill: 'url(#mtHub)', stroke: '#3c382f', 'stroke-width': 1 });
+  svgEl(s, 'line', { x1: cx - 5.5, y1: cy, x2: cx + 5.5, y2: cy, stroke: '#4a4438', 'stroke-width': 2 });
+  svgEl(s, 'circle', { cx, cy, r: 2.2, fill: '#8f897b' });
+  /* fixed red index at top + winding-direction arrow */
+  svgEl(s, 'line', { x1: cx, y1: cy - 44, x2: cx, y2: cy - 32, stroke: '#e0523a', 'stroke-width': 1.6 });
+  svgEl(s, 'path', { d: 'M 122 14 A 26 26 0 0 1 136 26', fill: 'none', stroke: 'var(--steel)', 'stroke-width': 1.6 });
+  svgEl(s, 'polygon', { points: '136,26 130.5,24.5 134.5,19.5', fill: 'var(--steel)' });
+  /* engraved plate captions */
+  const cap = (t, y) => svgEl(s, 'text', { x: 4, y, 'font-size': 6.2, 'letter-spacing': '.1em', 'font-family': 'var(--mono)', fill: 'var(--steel)' }).textContent = t;
+  cap('PUSH TO STOP', 118); cap('TURN TO START', 128);
+  let min;
+  const set = m => {
+    min = Math.max(0, Math.min(60, m));
+    rot.setAttribute('transform', `rotate(${(-min * 4.5).toFixed(2)},${cx},${cy})`);
+    onChange(min, min > 0.5 ? 'T-' + Math.round(min) + ' MIN' : 'OFF');
+  };
+  /* dial drag surface (under the knob in DOM so the knob wins the overlap) */
+  const hit = svgEl(s, 'circle', { cx, cy, r: 50, fill: 'transparent' });
+  hit.style.cursor = 'grab';
+  dragDelta(hit, () => min, set, { min: 0, max: 60 });
+  /* red stop knob: fluted edge, domed center */
+  const knob = svgEl(s, 'g', {});
+  svgEl(knob, 'circle', { cx: 126, cy: 104, r: 20, fill: 'url(#mtRed)', stroke: '#5c150c', 'stroke-width': 1.5 });
+  svgEl(knob, 'circle', { cx: 126, cy: 104, r: 18, fill: 'none', stroke: 'rgba(0,0,0,.4)', 'stroke-width': 3.4, 'stroke-dasharray': '3 2.4' });
+  svgEl(knob, 'circle', { cx: 126, cy: 104, r: 8.5, fill: 'url(#mtRed)', stroke: 'rgba(0,0,0,.3)', 'stroke-width': .8 });
+  svgEl(knob, 'ellipse', { cx: 121, cy: 98, rx: 6, ry: 3.4, fill: 'rgba(255,255,255,.18)', transform: 'rotate(-28,121,98)' });
+  knob.style.cursor = 'pointer';
+  knob.addEventListener('click', () => { set(0); onChange(0, 'STOP · OFF'); });
+  set(opts.minutes !== undefined ? opts.minutes : 0);
+  if (!matchMedia('(prefers-reduced-motion: reduce)').matches)
+    setInterval(() => { if (min > 0) { set(min - 1); if (min === 0) onChange(0, 'DING · OFF'); } }, 1000);
+  return { el: s, get: () => min, set };
+};
+
+/* R33 four-way rocker — quadrant clicks step a tracked cursor; arrows flash on press */
+GW.rockerPad = function (host, opts = {}) {
+  const onChange = opts.onChange || noop;
+  const s = stageSvg(host, 'rsvg press', 110, 110), cx = 55, cy = 55;
+  gradDef('rk4Pad', 'radialGradient', { cx: '42%', cy: '34%', r: '85%' }, [['0', '#33302b'], ['1', '#141210']]);
+  gradDef('rk4Arr', 'linearGradient', { x1: 0, y1: 0, x2: 0, y2: 1 }, [['0', '#e9e4d6'], ['1', '#9d988b']]);
+  gradDef('rk4Nub', 'radialGradient', { cx: '38%', cy: '30%', r: '85%' }, [['0', '#4a453e'], ['1', '#0d0c0a']]);
+  /* recessed plate + rubber pad */
+  svgEl(s, 'rect', { x: 3, y: 3, width: 104, height: 104, rx: 18, fill: '#211e1a', stroke: '#0c0b09', 'stroke-width': 1.5 });
+  svgEl(s, 'circle', { cx, cy, r: 45, fill: '#0f0d0b' });
+  svgEl(s, 'circle', { cx, cy, r: 41, fill: 'url(#rk4Pad)', stroke: '#060505', 'stroke-width': 1 });
+  /* four arrows, pointing outward */
+  const ARR = { up: '55,22 45,36 65,36', down: '55,88 45,74 65,74', left: '22,55 36,45 36,65', right: '88,55 74,45 74,65' };
+  const arrows = {};
+  for (const [dir, pts] of Object.entries(ARR))
+    arrows[dir] = svgEl(s, 'polygon', { points: pts, fill: 'url(#rk4Arr)', stroke: '#3c382f', 'stroke-width': .7 });
+  /* center pivot nub */
+  svgEl(s, 'circle', { cx, cy, r: 7, fill: 'url(#rk4Nub)', stroke: '#060505', 'stroke-width': .8 });
+  svgEl(s, 'ellipse', { cx: cx - 2, cy: cy - 2.5, rx: 2.6, ry: 1.7, fill: 'rgba(255,255,255,.25)' });
+  /* quadrant hit zones (drawn last so they win), press flash + tracked position */
+  let rx = 0, ry = 0;
+  const press = (dir, dx, dy) => {
+    rx += dx; ry += dy;
+    onChange({ x: rx, y: ry, dir }, dir.toUpperCase() + ' · x ' + rx + ' y ' + ry);
+    arrows[dir].setAttribute('fill', 'var(--gold-hi)');
+    setTimeout(() => arrows[dir].setAttribute('fill', 'url(#rk4Arr)'), 160);
+  };
+  const zone = (dir, pts, dx, dy) => {
+    const z = svgEl(s, 'polygon', { points: pts, fill: 'transparent' });
+    z.style.cursor = 'pointer'; z.addEventListener('click', () => press(dir, dx, dy));
+  };
+  zone('up', `${cx},${cy} 20,20 90,20`, 0, 1);
+  zone('down', `${cx},${cy} 20,90 90,90`, 0, -1);
+  zone('left', `${cx},${cy} 20,20 20,90`, -1, 0);
+  zone('right', `${cx},${cy} 90,20 90,90`, 1, 0);
+  onChange({ x: 0, y: 0, dir: null }, 'x 0 y 0');
+  return { el: s, get: () => ({ x: rx, y: ry }) };
+};
+
+/* R34 four-way toggle selector — ball lever throws to a diagonal; corner lamps show the state */
+GW.fourWayToggle = function (host, opts = {}) {
+  const onChange = opts.onChange || noop;
+  const s = stageSvg(host, 'rsvg press', 130, 130), cx = 65, cy = 65;
+  gradDef('fw4Chrome', 'linearGradient', { x1: 0, y1: 0, x2: 1, y2: 1 }, [['0', '#e8e6e0'], ['.5', '#9a968c'], ['1', '#55524a']]);
+  gradDef('fw4Ball', 'radialGradient', { cx: '36%', cy: '30%', r: '80%' }, [['0', '#f2f0ea'], ['.55', '#8e8a80'], ['1', '#3c3a34']]);
+  /* printed panel graphics: axes, circle, diagonal square, labels */
+  svgEl(s, 'line', { x1: 8, y1: cy, x2: 122, y2: cy, stroke: 'var(--steel)', 'stroke-width': .7, opacity: .7 });
+  svgEl(s, 'line', { x1: cx, y1: 8, x2: cx, y2: 122, stroke: 'var(--steel)', 'stroke-width': .7, opacity: .7 });
+  svgEl(s, 'text', { x: cx + 2, y: 13, 'font-size': 7, 'font-family': 'var(--mono)', fill: 'var(--steel)' }).textContent = 'Y';
+  svgEl(s, 'text', { x: 116, y: cy - 4, 'font-size': 7, 'font-family': 'var(--mono)', fill: 'var(--steel)' }).textContent = 'X';
+  svgEl(s, 'circle', { cx, cy, r: 42, fill: 'none', stroke: 'var(--steel)', 'stroke-width': .9, opacity: .8 });
+  const QUAD = { A: 315, B: 45, C: 135, D: 225 };
+  const diag = Object.values(QUAD).map(a => polar(cx, cy, 42, a));
+  svgEl(s, 'polygon', { points: diag.map(p => p.join(',')).join(' '), fill: 'none', stroke: 'var(--steel)', 'stroke-width': .8, opacity: .8 });
+  const LAMP_AT = { A: [14, 14], B: [116, 14], C: [116, 116], D: [14, 116] };
+  const lamps = {};
+  for (const [q, a] of Object.entries(QUAD)) {
+    const [lx, ly] = polar(cx, cy, 42, a);
+    const [px, py] = LAMP_AT[q];
+    svgEl(s, 'line', { x1: lx, y1: ly, x2: px, y2: py, stroke: 'var(--steel)', 'stroke-width': .7, opacity: .5 });
+    svgEl(s, 'circle', { cx: lx, cy: ly, r: 6.5, fill: '#14110e', stroke: 'var(--steel)', 'stroke-width': .9 });
+    svgEl(s, 'text', { x: lx, y: ly + 2.8, 'text-anchor': 'middle', 'font-size': 7.5, 'font-weight': 700, 'font-family': 'var(--mono)', fill: 'var(--cream)' }).textContent = q;
+    svgEl(s, 'circle', { cx: px, cy: py, r: 5.5, fill: '#0d0b09', stroke: '#2c2820', 'stroke-width': 1 });
+    lamps[q] = svgEl(s, 'circle', { cx: px, cy: py, r: 3.6, fill: '#3a3426' });
+  }
+  /* bezel + boot */
+  svgEl(s, 'circle', { cx, cy, r: 20, fill: '#0d0c0a', stroke: '#2a2722', 'stroke-width': 1.5 });
+  svgEl(s, 'circle', { cx, cy, r: 15, fill: '#17140f', stroke: '#060505', 'stroke-width': 1 });
+  /* lever: shaft + grip rotate to the selected diagonal; ball pivot stays centered */
+  const lever = svgEl(s, 'g', {});
+  svgEl(lever, 'polygon', { points: `${cx - 3},${cy} ${cx + 3},${cy} ${cx + 2},${cy - 26} ${cx - 2},${cy - 26}`, fill: 'url(#fw4Chrome)', stroke: '#3c3a34', 'stroke-width': .6 });
+  svgEl(lever, 'rect', { x: cx - 3.4, y: cy - 40, width: 6.8, height: 16, rx: 3, fill: 'url(#fw4Chrome)', stroke: '#3c3a34', 'stroke-width': .6 });
+  svgEl(s, 'circle', { cx, cy, r: 8.5, fill: 'url(#fw4Ball)', stroke: '#26241f', 'stroke-width': .8 });
+  svgEl(s, 'ellipse', { cx: cx - 2.6, cy: cy - 3, rx: 2.8, ry: 1.9, fill: 'rgba(255,255,255,.5)' });
+  let pos = null;
+  const set = q => {
+    pos = q;
+    lever.setAttribute('transform', `rotate(${QUAD[q]},${cx},${cy})`);
+    for (const k of Object.keys(QUAD)) {
+      lamps[k].setAttribute('fill', k === q ? 'var(--jewel-a)' : '#3a3426');
+      lamps[k].setAttribute('filter', k === q ? 'drop-shadow(0 0 4px rgba(255,180,58,.8))' : 'none');
+    }
+    onChange(pos, 'POS ' + q);
+  };
+  /* quadrant click zones (diagonal quadrants, drawn last) */
+  const zone = (q, pts) => {
+    const z = svgEl(s, 'polygon', { points: pts, fill: 'transparent' });
+    z.style.cursor = 'pointer'; z.addEventListener('click', () => set(q));
+  };
+  zone('A', `${cx},${cy} ${cx},5 5,5 5,${cy}`);
+  zone('B', `${cx},${cy} ${cx},5 125,5 125,${cy}`);
+  zone('C', `${cx},${cy} 125,${cy} 125,125 ${cx},125`);
+  zone('D', `${cx},${cy} ${cx},125 5,125 5,${cy}`);
+  set(opts.position || 'C');
+  return { el: s, get: () => pos, set };
+};
+
+/* R37 pin routing matrix — click an intersection to seat/pull a pin; many-to-many */
+GW.pinMatrix = function (host, opts = {}) {
+  const onChange = opts.onChange || noop;
+  const ROWS = opts.rows || ['OSC1', 'OSC2', 'LFO', 'NOIS', 'ENV'];
+  const COLS = opts.cols || ['VCF', 'VCA', 'PAN', 'DLY', 'OUT', 'MOD'];
+  const pins = new Set(opts.pins || ['OSC1>VCF', 'LFO>PAN', 'ENV>VCA']);   /* a legible default patch */
+  const s = stageSvg(host, 'rsvg press', 160, 110);
+  const X0 = 42, Y0 = 30, DX = 19, DY = 15.5;
+  svgEl(s, 'rect', { x: 2, y: 2, width: 156, height: 106, rx: 8, fill: '#1c1916', stroke: '#060505', 'stroke-width': 1.5 });
+  COLS.forEach((c, j) => svgEl(s, 'text', { x: X0 + j * DX, y: 16, 'text-anchor': 'middle', 'font-size': 5.4, 'letter-spacing': '.05em', 'font-family': 'var(--mono)', fill: 'var(--steel)' }).textContent = c);
+  ROWS.forEach((r, i) => svgEl(s, 'text', { x: 34, y: Y0 + i * DY + 2, 'text-anchor': 'end', 'font-size': 5.4, 'letter-spacing': '.05em', 'font-family': 'var(--mono)', fill: 'var(--steel)' }).textContent = r);
+  ROWS.forEach((r, i) => COLS.forEach((c, j) => {
+    const cx = X0 + j * DX, cy = Y0 + i * DY, key = r + '>' + c;
+    svgEl(s, 'circle', { cx, cy, r: 3.4, fill: '#0a0908', stroke: '#2c2820', 'stroke-width': 1 });
+    const cap = svgEl(s, 'circle', { cx, cy, r: 4.4, fill: 'var(--gold)', stroke: '#7d5c16', 'stroke-width': 1, opacity: pins.has(key) ? 1 : 0, filter: 'drop-shadow(0 1px 2px rgba(0,0,0,.6))' });
+    const hit = svgEl(s, 'circle', { cx, cy, r: 8, fill: 'transparent' });
+    hit.style.cursor = 'pointer';
+    hit.addEventListener('click', () => {
+      const on = !pins.has(key);
+      if (on) pins.add(key); else pins.delete(key);
+      cap.setAttribute('opacity', on ? 1 : 0);
+      onChange([...pins], (on ? r + ' → ' + c : 'pulled ' + r + ' → ' + c) + ' · ' + pins.size + ' routes');
+    });
+  }));
+  onChange([...pins], pins.size + ' routes');
+  return { el: s, get: () => [...pins] };
+};
+
+/* R38 dead-man button — state exists only while the pointer holds it down */
+GW.deadMan = function (host, opts = {}) {
+  const onChange = opts.onChange || noop;
+  const s = stageSvg(host, 'rsvg', 120, 110), cx = 60, cy = 58;
+  gradDef('dmBtn', 'radialGradient', { cx: '40%', cy: '32%', r: '85%' }, [['0', '#3a3631'], ['1', '#16130f']]);
+  svgEl(s, 'rect', { x: 4, y: 4, width: 112, height: 102, rx: 12, fill: '#211e1a', stroke: '#0c0b09', 'stroke-width': 1.5 });
+  svgEl(s, 'text', { x: cx, y: 18, 'text-anchor': 'middle', 'font-size': 6.2, 'letter-spacing': '.16em', 'font-family': 'var(--mono)', fill: 'var(--steel)' }).textContent = opts.caption || 'HOLD TO RUN';
+  const lamp = svgEl(s, 'circle', { cx: 104, cy: 16, r: 4.5, fill: '#1e2a12' });
+  const ring = svgEl(s, 'circle', { cx, cy, r: 33, fill: 'none', stroke: '#2c2820', 'stroke-width': 3 });
+  const btn = svgEl(s, 'g', {});
+  svgEl(btn, 'circle', { cx, cy, r: 28, fill: 'url(#dmBtn)', stroke: '#060505', 'stroke-width': 1.5 });
+  svgEl(btn, 'circle', { cx, cy, r: 22, fill: 'none', stroke: 'rgba(255,255,255,.07)', 'stroke-width': 1 });
+  svgEl(btn, 'text', { x: cx, y: cy + 2.5, 'text-anchor': 'middle', 'font-size': 7, 'letter-spacing': '.1em', 'font-family': 'var(--mono)', fill: 'var(--silver)' }).textContent = opts.label || 'RUN';
+  btn.style.cursor = 'pointer';
+  let t0 = null, iv = null;
+  const stop = () => {
+    if (t0 === null) return;
+    const held = ((Date.now() - t0) / 1000).toFixed(1);
+    t0 = null; clearInterval(iv);
+    btn.removeAttribute('transform');
+    ring.setAttribute('stroke', '#2c2820'); ring.removeAttribute('filter');
+    lamp.setAttribute('fill', '#1e2a12'); lamp.removeAttribute('filter');
+    onChange(false, 'SAFE (held ' + held + 's)');
+  };
+  btn.addEventListener('pointerdown', e => {
+    btn.setPointerCapture(e.pointerId);
+    t0 = Date.now();
+    btn.setAttribute('transform', 'translate(0,1.5)');
+    ring.setAttribute('stroke', 'var(--gold)'); ring.setAttribute('filter', 'drop-shadow(0 0 5px rgba(var(--glow-lo),.7))');
+    lamp.setAttribute('fill', 'var(--pass)'); lamp.setAttribute('filter', 'drop-shadow(0 0 4px rgba(116,147,47,.8))');
+    onChange(true, 'RUNNING 0.0s');
+    iv = setInterval(() => { if (t0 !== null) onChange(true, 'RUNNING ' + ((Date.now() - t0) / 1000).toFixed(1) + 's'); }, 100);
+    e.preventDefault();
+  });
+  btn.addEventListener('pointerup', stop);
+  btn.addEventListener('pointercancel', stop);
+  onChange(false, 'SAFE');
+  return { el: s, get: () => t0 !== null };
+};
+
 /* ---- widget CSS: injected once, grows as builders move in ---- */
 const GW_CSS = ``;
 function ensureCss() {