Build - docs: correct threading and cache-size claims, refresh library comparison doc/features.md described settings binding.gyp does not actually define. It claimed SQLITE_THREADSAFE=2 (multi-thread) when SQLITE_THREADSAFE is undefined and SQLite's serialized default applies, and a 16MB default page cache when SQLITE_DEFAULT_CACHE_SIZE is commented out and PRAGMA cache_size reports SQLite's -2000 (2MB). Serialized mode is not incidental: db.backup() steps the source connection on a libuv worker thread ...

Build - docs: correct threading and cache-size claims, refresh library comparison doc/features.md described settings binding.gyp does not actually define. It claimed SQLITE_THREADSAFE=2 (multi-thread) when SQLITE_THREADSAFE is undefined and SQLite's serialized default applies, and a 16MB default page cache when SQLITE_DEFAULT_CACHE_SIZE is commented out and PRAGMA cache_size reports SQLite's -2000 (2MB). Serialized mode is not incidental: db.backup() steps the source connection on a libuv worker thread ... #323