Add Web Serial and WebUSB transports - #6
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… profile resolution and documentation
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Adds
transport: 'serial'andtransport: 'usb'alongside Bluetooth/QZTray, so USB cable printers work with no extra software on
Windows/Linux/macOS.
reconnectSerial()/reconnectUsb()for silentreconnect;
usb/profiles.tsports NielsLeenheer's vendor/product-idtable, with a manual-profile escape hatch like Bluetooth's.
Fix: WebUSB's post-picker
SecurityError(another driver alreadyholding the device) was mislabeled
user-gesture-required— now a clearconnect-failed(printerErrors.ts#normalizeOpenError()).Findings, documented, no code fix possible: WebUSB is blocked by
driver claims on Linux too, not just Windows (
docs/notes/11); somevendor "virtual COM port" tools (e.g. Epson's) never show up in Web
Serial's picker — use QZ Tray for those (
docs/notes/12). Recommendtransport: 'serial'by default.Also: Docker build fixed (
node:20-slim,canvashas no musl prebuild);AGENTS.md/README.md/docs/notes/*condensed.