fix(node): load properly better-sqlite3 (#795)

Author: flochaz

.changeset/fix-better-sqlite3.md

@@ -0,0 +1,5 @@
+---
+"@powersync/node": patch
+---
+
+Fix loading `better-sqlite3` on CommonJS builds.

packages/node/src/db/SqliteWorker.ts

@@ -84,7 +84,8 @@ export function startPowerSyncWorker(options?: Partial<PowerSyncWorkerOptions>)
     },
     async loadBetterSqlite3() {
       const module = await dynamicImport('better-sqlite3');
-      return module.default;
+      // require() gives us the default directly, for an ESM import() we need to use the default export.
+      return isBundledToCommonJs ? module : module.default;
     },
     ...options
   };