feat: console music command with 8-bit soundtrack

[jjsnack]

What

Adds a music command to the floating console, plus a subcommand refactor of the console command style.

• music — synthesises a calm C-major pentatonic 8-bit tune live with WebAudio (no audio files, no deps). Triangle lead + sine bass pad.
  • music play / music stop / music volume <0-10>
  • bare music prints a usage block
• theme — refactored to the same subcommand style: theme list / theme set <mode>, bare theme prints usage
• help — reformatted to aligned name : description
• CLAUDE.md — documents the theme + the console command style all future commands must follow

Self-check (node assets/js/console.js) covers every new branch and passes.

🤖 Generated with Claude Code

[jjsnack]

Frontend review

Solid overall — no-dep vanilla JS, pure run() core with a self-check, progressive enhancement done right (launcher + window ship hidden, JS unhides), XSS-clean (textContent everywhere), WebAudio uses the correct lookahead-scheduler pattern. Self-check passes. Findings ranked.

Accessibility

1. ASCII banner is announced to screen readers — real defect. .console__log is role="log" aria-live="polite". At init the figlet <pre> banner is appended inside it (console.js:273) with no aria-hidden, so a screen reader reads decorative ASCII art character-by-character. Fix: art.setAttribute("aria-hidden","true").

Correctness / robustness

2. music play lies if audio is blocked. console.js:239 writes ♪ music on unconditionally; ctx.resume()'s promise is never inspected (console.js:187). User-gesture triggered so usually fine, but a blocked context claims music plays silently. A .catch writing a failure line closes it. (low)

3. voice param vol shadows module-level vol. console.js:163 — inner vol is per-note gain, outer is master volume used by setVolume. Same name, two meanings, one scope apart. Rename param to gain. (footgun, not a bug)

4. var history shadows window.history. console.js:144. Harmless but a smell in a 300-line IIFE.

Performance

5. Whole figfont base64'd into every page. console.html:6 embeds {{ $font.Content | base64Encode }} — ~6KB base64 in every page's HTML, re-parsed client-side per load. site.Title is known at build time, so the banner could be rendered server-side in Hugo, dropping both the embedded font and the parseFig/banner JS (~40 lines). Bigger refactor — flagging.

Dead code

6. a.console__line:hover matches nothing. main.css targets anchor lines, but write() only ever creates divs — no path renders an <a>. Delete it.

Design — passes

Monochrome, single --accent tint, disciplined; fits the text-first brief, avoids AI-default looks. Real responsive handling (min(84ch, calc(100vw-2rem)), banner isolated in overflow-x:auto). No gratuitous motion. Subcommand usage: style matches the documented convention.

Verdict

Ship-worthy after #1 (one line). #6 is a free deletion. #2–#5 are follow-ups, not blockers.

[jjsnack]

Issues all fixed with Claude.