web: FieldCraft in the browser (apps/fieldcraft-web)

The desktop's ModelApp in a web page through eframe's web runner
(WebGPU, WebGL2 fallback, `?webgl` to force it), built with Trunk.
The browser services sit behind the UI's host-service seams: File >
Open uses the browser's file picker, dropped files are read
asynchronously, and both go into the page's files; Save, Save As and
Write Deck hand the written file out as a download. Autosaves go to the
recovery folder as on the desktop and are mirrored to local storage, so
File > Recover offers what a closed or crashed page left. `?sample=NAME`
opens a sample. A loading screen with the app icon, and a message
instead of the app when neither WebGPU nor WebGL2 is available.

`cargo xtask wasm` (and so `cargo xtask ci`) now checks fieldcraft-web
for wasm32 with the library crates. docs/web.md: running it locally,
what works in the browser and what does not.

Part of #119

Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm
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jyvikoandClaude Opus 5.5 authored and Irakli Kourtis committed 2026-10-14 10:47:41 -04:00
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@@ -175,6 +175,7 @@ is committed and listed here with its exports.
| packaging/env.sh, packaging/.shellcheckrc, packaging/macos/package.sh, packaging/macos/Info.plist.in, packaging/linux/package.sh, packaging/linux/AppRun, packaging/windows/package.ps1 | SolidCraft `packaging/` and VectorCraft `packaging/` (signing and notarization in macos/package.sh) | MIT OR Apache-2.0 |
| packaging/macos/import-cert.sh | VectorCraft `packaging/macos/import-cert.sh` | MIT OR Apache-2.0 |
| packaging/windows/check-exe.ps1 | SolidCraft `packaging/windows/check-icon.ps1` | MIT OR Apache-2.0 |
| apps/fieldcraft-web/ (the web runner, browser file services and downloads, Trunk configuration, index.html) | VectorCraft `apps/vectorcraft-web/` and SolidCraft `apps/solidcraft-web/` | MIT OR Apache-2.0 |
| crates/io/src/memory.rs (files kept in memory for the browser build) | SolidCraft `crates/io/src/vfs.rs` | MIT OR Apache-2.0 |
| .github/workflows/release.yml, .github/release-notes.md, docs/releasing.md | SolidCraft `.github/workflows/release.yml`, `.github/release-notes.md`, `docs/releasing.md`; VectorCraft `.github/workflows/release.yml` | MIT OR Apache-2.0 |
| .github/workflows/packaging-lint.yml | SolidCraft `.github/workflows/packaging-lint.yml` (itself adapted from PhotoCraft, https://github.com/storytold/photocraft, Apache-2.0) | MIT OR Apache-2.0 |