fix: Fixes pdf export via cli (on windows)

[florian-hubertSE]

Fixes missing images (if used with relative pathes) and diagrams in pdf while using the cli, instead of the export button.

Before

after

[RDMillen]

Hi @florian-hubertSE,

Thank you for catching this and submitting a PR. Will get this reviewed and tested for the next release.

Thank for your submissions,

Ross

[RDMillen]

Hi @florian-hubertSE,

Thanks for this, the \\?\ fix in cli.rs is spot on. A few things to sort before it can go in:

1. hasPendingLocalMedia in App.tsx only checks for asset://, but on Windows convertFileSrc returns http://asset.localhost/..., so the gate never fires on the platform this PR targets. Match both forms, or derive the pending state from the resolved URL map in useResolvedSlides rather than sniffing the placeholder scheme.

2. Nothing bounds the wait. If read_file_b64 fails for a missing or mistyped path, the src stays a placeholder, hasPendingLocalMedia never clears, and kova --export hangs silently on macOS and Linux. The elements.tsx change has the same shape, a first render cancelled before it caches an SVG stops advancing the ready count. Please add a timeout to the export readiness path so a deck with a broken image or diagram still exports.

3. Please revert the formatting changes in src/engine/export/exportPdfNative.ts and src/hooks/useResolvedSlides.ts. git diff -w shows no functional change in either file, it buries the real change and will clash with other branches. Keep the diff to cli.rs, App.tsx, SlideRenderer.tsx and elements.tsx.

4. strip_verbatim_prefix duplicates the \\?\ handling already in commands/window.rs. Please lift it into one shared helper.

Thanks,
Ross

[florian-hubertSE]

Hi @RDMillen,

thanks for your review feedback.

I have adapted the PR in accordance to your comments and hope everything fits to your needs. I have tested it locally on my windows system, and functional-wise it looks good.

Best,
Florian

[RDMillen]

Hi @florian-hubertSE,

All four points look well handled, thank you. I have pushed one tidy-up commit: the blank line and doc comment between safe_read_path and safe_write_path in file_io.rs had been collapsed onto the closing brace. Nothing functional.

Will squash-merge once CI is green so it makes the next release.

Thanks,
Ross