fix(driver-sql): only cache sequences-ready flag when DDL ran durably

Harden the lazy ensureSequencesTable fallback: when the table is created
on the caller's transaction (SQLite in-tx path), the create is
commit-conditional — a rollback would drop it. Cache sequencesTableReady
only when the DDL ran on a durable pooled connection (this.knex); on the
in-tx path leave the flag unset so the next write cheaply re-verifies via
hasTable instead of trusting a stale process-level flag. initObjects
still sets it durably up front, so the hot path is unchanged.

Author: baozhoutao

packages/plugins/driver-sql/src/sql-driver-autonumber-tokens.test.ts

@@ -209,7 +209,8 @@ describe('SqlDriver auto_number format tokens', () => {
     await driver.initObjects([
       { name: 'invoice', fields: { invoice_number: { type: 'autonumber', format: 'INV-{0000}' } } },
     ]);
-    // First create triggers the lazy table-ensure → in-place migration.
+    // initObjects pre-ensures the table → the in-place migration runs at init,
+    // before any write; the first create then reads the already-migrated counter.
     const r = await driver.create('invoice', {});
 
     const cols = await k('_objectstack_sequences').columnInfo();

packages/plugins/driver-sql/src/sql-driver.ts

@@ -776,7 +776,13 @@ export class SqlDriver implements IDataDriver {
         // Pre-existing table may predate the `key_hash`/`scope` shape. Migrate.
         await this.ensureSequencesKeyHashShape(runner);
       }
-      this.sequencesTableReady = true;
+      // Cache "ready" only when the DDL ran on a durable connection. If it rode
+      // the caller's transaction (the SQLite in-tx fallback above), the table is
+      // commit-conditional — a rollback would drop it — so leave the flag unset
+      // and re-verify (a cheap `hasTable`) on the next write rather than trusting
+      // a stale process-level flag. `initObjects` sets it durably up front, so
+      // the hot path is unaffected.
+      if (runner === this.knex) this.sequencesTableReady = true;
     })();
     try {
       await this.sequencesTableEnsurePromise;