2 Commits

Author	SHA1	Message	Date
Manuel Raimann	ed1e9e31da	fix: use atomic counter for temp paths in journal tests ... On Windows, SystemTime::now().as_nanos() has ~15ms resolution, causing parallel tests to generate identical file paths and corrupt each other's data.	2026-02-11 23:17:09 +01:00
Manuel Raimann	0a6f2345a8	feat: add Storage trait and JSONL journal backend ... Replace the internal Vec<CompletedTrial<V>> with a pluggable Storage<V> trait. MemoryStorage is the default (no behavior change for existing users). Behind the `journal` feature flag, JournalStorage persists trials to a JSONL file with fs2 file locking for multi-process safety. - Storage<V> trait with push(), trials_arc(), refresh() methods - MemoryStorage<V> wraps Arc<RwLock<Vec<CompletedTrial<V>>>> - JournalStorage<V> appends JSON lines with exclusive file locks - Study::with_sampler_and_storage() general constructor - Study::with_journal() convenience constructor (journal feature) - Refresh from storage on create_trial() for multi-process discovery - MSRV bumped to 1.89	2026-02-11 22:58:38 +01:00