__luxarDebug.cache.getStats().health.opfsAvailable, or null when
unavailable. false means UNREQUESTED degradation only — an OPFS the store
could not acquire, or a tripped circuit breaker (a documented hazard under
automated Chromium). A deliberate ?noCache / ?noOpfs reports true.
Lets a caller tell "the tier never ran" from "the tier ran and dropped
nothing", which the write counter alone cannot: it reads 0 for both.
__luxarDebug.cache.getStats().health.opfsAvailable, or null when unavailable.falsemeans UNREQUESTED degradation only — an OPFS the store could not acquire, or a tripped circuit breaker (a documented hazard under automated Chromium). A deliberate?noCache/?noOpfsreportstrue. Lets a caller tell "the tier never ran" from "the tier ran and dropped nothing", which the write counter alone cannot: it reads 0 for both.