feat(models): add vision input capabilities

[patlux]

Summary

• sync model image input capabilities with the bundled command-code@1.15.1 catalog
• advertise image input only for upstream-confirmed vision models, including GPT-5.6 Luna and Muse Spark 1.2
• serialize user and tool-result images using Command Code's current data-URL wire format
• keep unknown and text-only models fail-closed before network access
• update the Command Code client version header and image-input documentation

Closes #42

Verification

• npm test
• npm run format:check
• git diff --check

npm test passed; the optional OMP compatibility smoke test was skipped because omp is not installed on PATH.

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

Scanned Files

None

[github-actions]

Memory benchmark

Compared base 4b6e1cd with PR head bd056d0 on the same GitHub-hosted darwin runner. Lower values are better.

Metric	Base	PR	PR − Base	Change
Stable RSS	167.8 MiB ± 0.6 MiB	168.5 MiB ± 0.8 MiB	+0.5 MiB ± 1.0 MiB	+0.3%
Physical footprint	110.6 MiB ± 0.4 MiB	111.3 MiB ± 0.6 MiB	+0.1 MiB ± 0.2 MiB	+0.1%
Physical peak	127.3 MiB ± 0.8 MiB	128.6 MiB ± 1.0 MiB	+0.5 MiB ± 1.1 MiB	+0.4%

Interpretation: No metric shows a clear Base-to-PR difference beyond its measured run-to-run variation.

Extension overhead above pi baseline

Metric	Base overhead	PR overhead	Difference
Stable RSS	+6.1 MiB ± 1.1 MiB	+6.8 MiB ± 1.5 MiB	+0.5 MiB ± 1.0 MiB
Physical footprint	+4.0 MiB ± 0.9 MiB	+4.8 MiB ± 1.2 MiB	+0.1 MiB ± 0.2 MiB
Physical peak	+3.7 MiB ± 1.7 MiB	+4.7 MiB ± 1.8 MiB	+0.5 MiB ± 1.1 MiB

Values are medians of 6 alternating, paired runs. The value after ± is the median absolute deviation (MAD). Each process was sampled 12 times after a 2500 ms warm-up.

Environment: pi 0.82.1, Bun 1.3.11, darwin arm64. RSS comes from ps; physical footprint and peak come from macOS footprint.

This is a comparative signal, not a pass/fail threshold. GitHub-hosted runner noise can affect absolute values.

[patlux]

Attachments

Authenticated pi vision E2E

Screenshot_2026-08-11_00-26-18@2x.png

[patlux]

Shipped in pi-commandcode-provider@0.5.1 / GitHub release v0.5.1.