Add Concurrency page; cross-link from setup, config, internals, and FAQ New Reference page documenting the write-serialization model (SQLite's single-writer lock plus Microsoft.Data.Sqlite's CommandTimeout-bounded retry) and the best practices: no app lock, short transactions, CommandTimeout for in-memory, busy_timeout for file. Adds a sidebar entry and pointers from Getting-Started, DI-and-Configuration, Storage-Architecture, and the FAQ. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

marklauter committed Jun 2, 2026