The Node driver takes the count from node:sqlite; the Durable Object driver reads
SELECT changes() after the statement, since the cursor's rowsWritten also counts
index writes (verified in workerd). run is unchanged and costs nothing more.
Reverts 48c8f3228 and 4759f09fb. Session sync replicates pi-durable commits instead of SQLite pages, so NodeSqliteDatabase.exclusive(), the replicated connection wrapper, the WAL reader, page checksums, the segment container, start-marker keys and the zstd page compressor have no user.
Portable modules under sqlite/replication: a WAL scanner that returns the newest page versions of committed transactions and stops at the last valid commit frame, incremental whole-database checksums from per-page hashes, the shared segment and base container with header validation, and object keys and start markers. A Node-only zstd page compressor sits beside them. None of it is exported from the package yet.
NodeSqliteDatabase.exclusive() runs an operation alone on the connection, outside a transaction, and rolls back a transaction the operation left open.
The internal replicated connection wrapper opens a database file with automatic checkpoints off, reports every operation, and runs a hook before SQLite checkpoints and deletes the WAL on close. It is not exported from the package yet.
