sharp 0.35.x Bun repro

Minimal standalone reproduction for AutoMobile issue #3014. It intentionally has no AutoMobile dependencies and pins sharp@0.35.3, the sharp 0.35.x line called out in the image-backend design record.

Upstream tracking:

• oven-sh/bun#20372
• oven-sh/bun#29352
• lovell/sharp#4042

Run from this directory:

bun install
bun run repro

The script imports sharp, prints Bun/platform/sharp runtime versions, creates a small PNG entirely through sharp, exercises lossy/lossless/near-lossless WebP encodes, reads WebP metadata, and prints ok if the process survives.

To validate the full behavior without mutating this directory, run the repo helper from the root:

bash scripts/validate-sharp-bun-repro.sh

The helper copies this standalone package into scratch/, installs with the checked-in lockfile, runs bun run repro, and asserts sharp 0.35.3, WebP metadata, nonzero lossy/lossless/near-lossless outputs, and the final ok marker.

Local result captured for issue #3014 on 2026-07-07:

• darwin arm64, Bun 1.3.14, sharp 0.35.3, libvips 8.18.3: passed; output is in scratch/sharp-bun-0.35-repro/local-output.txt.
• Linux container check was not exercised because the local Docker daemon was unavailable; attempted output is in scratch/sharp-bun-0.35-repro/linux-container-output.txt.

For issue #3014 validation, capture output from the repo root:

mkdir -p scratch/sharp-bun-0.35-repro
(
  cd docs/reproductions/sharp-bun-035
  bun install
  bun run repro
) > scratch/sharp-bun-0.35-repro/local-output.txt 2>&1

Optional Linux container check:

docker run --rm \
  -v "$PWD/docs/reproductions/sharp-bun-035:/repro" \
  -w /repro \
  oven/bun:1.3.14 \
  sh -lc 'bun install && bun run repro' \
  > scratch/sharp-bun-0.35-repro/linux-container-output.txt 2>&1