Desktop/shared:
- Frame workers catch panics per job: a failing decode/render no longer kills the worker
or leaves its frame in flight forever (blank monitors). Counted as perf.stats failedJobs.
- UI pass catches panics and shows a "FilmCraft hit an error" window (Save Project /
Continue) instead of closing the app.
- Panic hook writes <data dir>/Logs/crash-<day>.log with thread, location and backtrace;
a window that can't start shows an error dialog instead of exiting silently.
- GPU compositor only on adapters that render/blend Rgba16Float with >= 4096 textures;
GPU validation errors and oversize frames switch to the CPU compositor instead of
wgpu's default panic.
- Dock layout and Media Browser splitter no longer panic on tiny panels/windows.
Web:
- Export mode / previews / voice-over / log reveal no longer call std::env::temp_dir
(panics on wasm32): new filmcraft_engine::temp_dir(); default export dir /exports.
- Fatal-error overlay with Reload; WebGPU device failure retries on WebGL2 (?webgl);
cache-busted wasm/glue URLs; webcodecs entries[0] guard.
Tests: robustness_ui (worker survives injected panics, UI panic recovery, tiny windows),
crash hook, dock split, GPU plan size, default export dir; web smoke test extended.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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