Three low-risk fixes:
- #3740/#3883: sidebar no longer hides a messageful session that kept a stale message_count:0 index row after an interrupted stream — the read-side sidecar refresh now self-heals the count when user_message_count>0 and the sidecar is newer than the index.
- #3833/#3878: manual workspace refresh now clears the directory cache and re-fetches expanded subdirectories, so files written there by cron jobs / CLI agents / external tools become visible without a full reload.
- #3880: completed the Japanese (ja) locale — translated the 11 remaining English strings (Settings→Help, cron-sessions setting, compression-queue composer placeholder).