Show a Chip node as a device with its wave and its pitch (#386)

The Chip had eleven numbers in rows and nothing that showed what they
do to a note. Its node is now a device of one size like the
Compressor's, and two screens draw the wave and the pitch from the
settings, worked right in the instrument graph.

- ChipPanel is 840x280 in the warm grey of a handheld console. A
  button per wave, the "follow note" lever and a chrome knob per
  number, grouped Oscillator, Slide, Vibrato, Arpeggio and Repeat.
- The wave screen draws two periods as loud as the Chip plays them,
  a square at its duty. toneValue and periodicSteps come out of
  chip.ts, so the screen and the worklet share one formula.
- The pitch screen draws what slide, delta slide, vibrato, arpeggio
  and repeat make of the pitch over a note. It ends where the note
  falls below "min frequency" and starts from A4 while the Chip
  follows the note.
- Idle settings are faded, wired ones greyed and locked, as the rows
  were. Every change is one undo step.
- Knobs take a bipolar range: 0 straight up, the taper bends each
  half. Slide, delta slide, duty sweep and arpeggio use it.
- The Compressor's auto-gain lever is now a Lever with a name of its
  own, which the Chip uses for "follow note".
- Presets give a Chip five columns, as a Filter has four since #385.

Found on the way:

- With the Chip this wide the Laser preset is about 3060 units. In a
  1280 px window Fit stops at the least zoom of 0.25 and cuts the
  Notes node off. The zoom limit is left as it is.

Tests:
- Unit: chip-view (9 new), knob (1 new), chip, chip-presets and
  hardware-view, 53 green
- e2e 34 on melektaus-atx: ALL PASSED, 131 checks (1 new). The
  first run was red on the check itself: a Laser's "min frequency"
  can lie above A4, and the screen then rightly says the note ends
  at once.
- Gate on melektaus-atx: CHECK EXIT 0, 285 files, 4377 tests
- Counter-check: a square drawn with its duty mirrored turns the wave
  test red

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/editor/soundfx/nodeFaces.ts

@@ -1,15 +1,18 @@
 import type { GraphNode } from '../../core/graph';
+import { InstrumentChip } from '../../core/instrument/nodes';
 import { SoundFxCompressor, SoundFxFilter, SoundFxGain, SoundFxParametricEq } from '../../core/soundfx/nodes';
 import type { NodeFace } from '../graph/nodeFace';
 import type { EditorState } from '../state';
+import { ChipFace } from './ChipFace';
 import { CompressorFace } from './CompressorFace';
 import { CurveFace } from './CurveFace';
 import { EqPanel } from './EqPanel';
 import { FilterPanel } from './FilterPanel';
 import { GainFace } from './GainFace';
 
-/** The nodes drawn as a face of their own instead of rows (#380, #381, #384, #385), by type. */
+/** The nodes drawn as a face of their own instead of rows (#380, #381, #384, #385, #386), by type. */
 export function nodeFaceFor(state: EditorState, assetId: string, node: GraphNode): NodeFace | null {
+  if (node.type === InstrumentChip.type) return new ChipFace(state, assetId, node.id);
   if (node.type === SoundFxCompressor.type) return new CompressorFace(state, assetId, node.id);
   if (node.type === SoundFxParametricEq.type)
     return new CurveFace(new EqPanel(state, true), assetId, node.id);