fix(web): resolve wasm32 runtime panics; game boots and renders in Firefox

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Fixes found while testing the Bevy WASM build in a real browser:

1. chrono wasmbind: add `wasmbind` feature to workspace chrono dep so
   Local::now()/Utc::now() use js-sys::Date on wasm32 (previously
   fell through to std::time::SystemTime which panics on wasm32).

2. std::time::SystemTime: replace all remaining direct SystemTime::now()
   calls (4 sites across game_plugin, difficulty_plugin, time_attack_plugin,
   solitaire_data/storage) with chrono::Utc::now() which is wasm32-safe.

3. user_dir: return empty PathBuf (instead of panicking) when data_dir()
   is None on wasm32; there is no filesystem in the browser so user themes
   are unsupported and a benign empty path is correct.

4. ThemeRegistryPlugin: gate build_registry_on_startup to non-wasm32
   (the filesystem scan for user themes has nothing to scan in the browser;
   only the bundled embedded themes are available).

5. AssetMetaCheck::Never: configure AssetPlugin in solitaire_web to skip
   `.meta` sidecar fetches — we don't ship .meta files, so the default
   AssetMetaCheck::Always produced a 404 flood on every card/background asset.

Result: `http://localhost:<port>/play` boots in Firefox with zero errors
and renders the full Bevy game — home screen, onboarding modal, HUD all
visible. Assets load correctly from /assets/. Chromium has a separate
wgpu-27/ANGLE/GLES shader translation bug (not in our code); Firefox works.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

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This commit is contained in:

funman300

2026-06-01 14:16:19 -07:00

parent f464aab543

commit a92ac066a6

10 changed files with 72 additions and 56 deletions

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solitaire_server/web/pkg/canvas_bg.wasm

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