chore: changeset for cli memory driver dispatch fix (#3276)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: os-zhuang

.changeset/cli-memory-driver-dispatch.md

@@ -0,0 +1,18 @@
+---
+'@objectstack/cli': patch
+---
+
+fix(cli): honor `OS_DATABASE_DRIVER=memory` (mingo InMemoryDriver) (#3276)
+
+`os dev` / `os start` / `os serve` advertised a `memory` database driver
+(`--database-driver memory`, `OS_DATABASE_DRIVER=memory`, and a `memory://`
+URL scheme), but `serve.ts`'s driver dispatch had no `memory` branch — so it
+silently fell through to the dev SQLite `:memory:` default (SQLite-in-memory,
+a *different* engine) or, in production, registered no driver at all.
+
+The driver kind-resolution + construction is now extracted into
+`utils/storage-driver.ts` (unit-testable in isolation) with the missing
+`memory` branch: selecting it yields the mingo `InMemoryDriver` in dev AND
+production. The `memory://` / `mingo://` URL scheme is now recognized too,
+kept distinct from sqlite's `:memory:` pseudo-file. Telemetry-datasource
+provisioning behavior is unchanged.