* fix(obs): prevent rolling log stdout aliasing * fix(ecstore): bound hot-path tracing payloads * test(logging): guard service and disk log invariants * fix(obs): silence useless_conversion on st_dev for Linux clippy rustix's Stat.st_dev is u64 on Linux/glibc, making u64::try_from a no-op that trips clippy::useless_conversion under -D warnings. The conversion is still needed on macOS/BSD where st_dev is a signed dev_t, so suppress the lint on that line rather than dropping the portable fallible conversion. * fix(logging): keep stdout sink validation portable (#4769) * fix(obs): keep stdout device conversion portable * docs(logging): update single-writer plan status --------- Co-authored-by: overtrue <[email protected]> Co-authored-by: houseme <[email protected]>