Replace the Trunk post_build hook packaging/web/copy-fonts.sh with `cargo xtask web-fonts` (xtask/src/web_fonts.rs), so the web build only needs trunk, the wasm32 target and cargo, with no POSIX shell, and works the same on Windows.
The new task reuses crates/text/build/web_fonts.rs for list parsing and URLs, so build.rs and the copier can't disagree on fonts/<sha16>/<file>. It still does nothing without CRAFT_FONTS_DIR, checks each file's SHA-256 against the manifest, and copies the licence next to each face. A listed face that an older craft-fonts checkout lacks is now skipped with a warning, as build.rs does, instead of failing the build. A relative CRAFT_FONTS_DIR is resolved from the workspace root.
Update the references in Trunk.toml, fonts.rs, build.rs, craft_fonts.rs and web-fonts.txt, and document the web build's requirements in docs/development.md. Add tests for the copy, a hash mismatch and the no-op case.
Signed-off-by: Ahmed Moussa <moussa.ahmed95@gmail.com>
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