Absorb the AbortError that priming the voice clip provokes

[Knorcedger]

What changed?

The first pointer press of every match logged an uncaught error to the console:

Uncaught (in promise) AbortError: The play() request was interrupted by a call to pause().

createRecordedSpeech(...).prime() spends the browser's first user gesture on the recorded-voice
clip so a later beat is allowed to play: it sets a silent src, calls play(), and immediately
pauses. That pause is the whole point, and it rejects the play() it interrupts — but
void target.play() discarded the promise, so an expected rejection surfaced as an unhandled one.

Attaching a .catch keeps the behaviour identical and takes the error out of the console. speak()
already handles its own play() promise and cancel()/stopClip() are covered by the generation
guard, so prime() was the only unhandled path; a genuine autoplay refusal is still acted on where
it matters.

Related issue

Closes #156

Why this approach?

Nothing was actually broken — priming worked and the silence was intended. The case for fixing it is
that the error is alarming, fires on the first press of every match, and lands in the middle of the
event sequence anyone debugging input is reading. It cost real time during #153 by appearing to be
part of a dead pause button.

Suppressing the rejection at its source is preferable to a global unhandledrejection filter, which
would hide genuine audio failures too.

Verification

Driven in a real browser: three pause presses across a match, including the first gesture.

	Console output
Before	AbortError: The play() request was interrupted by a call to pause() on the first press
After	empty — zero errors

The new test was confirmed to fail against the old prime() and pass against the new one, so it
genuinely guards the regression.

• npm run typecheck
• npm test — 1401 passed, 11 skipped
• npm run build, npm run bundle:check, npm run bundle:self-test
• I added or updated tests where behavior changed — a prime() whose play() rejects produces
  no unhandled rejection, and still plays the silent clip, pauses it, and primes the fallback
• I included screenshots or a recording for visible changes — no visible change; the table above
  is the evidence

Provenance and AI assistance

Claude Code (Claude Opus) diagnosed, fixed, and tested this. No generated assets are included.

Contributor checklist

• I searched issues and active pull requests before implementation and coordinated ownership in the linked issue
• This pull request closes or references exactly one primary coordination issue
• I read CONTRIBUTING.md and followed the deterministic simulation rules
• I reviewed and understand every submitted change
• I have the right to submit this code and any included assets
• My commits are signed off under the Developer Certificate of Origin (git commit -s)
• This PR contains no credentials, private player data, or unlicensed third-party material

🤖 Generated with Claude Code

https://claude.ai/code/session_01BoQrnJcCawJvZ9jGHx5W4P

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Generated by Claude Code

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