Release v15.33.8

Fixed

• SQL backend: Workbench event-store list and namespace dropdown now populate correctly — SSE observable subscriptions were silently receiving no data because the BehaviorSubject's initial emission was swallowed by a non-replaying Subject intermediary before any subscriber was attached
• SQL backend: Appending events no longer fails with value too long for type character varying(200) when a unique constraint value (e.g. a long email address) exceeds 200 characters — the Value column is now created as unbounded text, and existing tables are automatically altered in-place on next startup