Sync a SQLite database to Turso's edge replica for low-latency global reads

Steps

1. Install the Turso CLI and authenticate: `turso auth login`.
2. Create a Turso database from a local SQLite file: `turso db create mydb --from-file ./local.db` — uploads the file and returns a `libsql://` URL.
3. Add edge replicas in additional regions: `turso db replicate mydb --location lhr` (London); repeat for each region you need.
4. In your application, use the `@libsql/client` package and connect with the Turso URL and an auth token: `createClient({ url: 'libsql://...', authToken: 'YOUR_TOKEN' })`.
5. Reads are automatically routed to the nearest replica; writes go to the primary and propagate to replicas asynchronously — use `sync()` to force replica refresh if needed.