A slow non-essential ES module could block navigation for ~10s. On real
pages (www.ycombinator.com) obscura spent ~11.5s loading YC's bookface
module, whose top-level eval idle-waits forever, until the phase watchdog
killed it. The page renders fully without it (CPU was ~3s, the rest pure
idle), but wall time was ~2.5x lightpanda.
load_module / load_inline_module now take a per-module budget and bound
both the import-graph fetch and the eval loop with it. page.rs sizes the
budget by whether the body is already rendered: an enhancement module on
a populated page (>50 body descendants) gets a short budget (3s, override
OBSCURA_MODULE_BUDGET_MS); an unmounted SPA shell keeps the full script
budget so the app module still mounts (#205). Fetch concurrency is
unchanged; only the idle eval wait is bounded.
www.ycombinator.com: wall 13.1s -> 6.6s, still 475 links, CPU unchanged.
teragrowth.org (Vite SPA) still renders. Obstacle course 33/33 including
the es-modules / ssr-hydrate / spa stages. Post-drop eval works.
SGavrl
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