feat(fusion_accounting_followup): migration wizard backfill from account_followup

Made-with: Cursor

fusion_accounting_followup/tests/__init__.py

@@ -18,3 +18,4 @@ from . import test_engine_property
 from . import test_followup_full_flow
 from . import test_performance_benchmarks
 from . import test_batch_followup_wizard
+from . import test_migration_round_trip

fusion_accounting_followup/tests/test_migration_round_trip.py

@@ -0,0 +1,21 @@
+from odoo.tests.common import TransactionCase
+from odoo.tests import tagged
+
+
+@tagged('post_install', '-at_install')
+class TestFollowupMigrationRoundTrip(TransactionCase):
+
+    def test_bootstrap_step_runs(self):
+        wizard = self.env['fusion.migration.wizard'].create({})
+        result = wizard._followup_bootstrap_step()
+        self.assertEqual(result['step'], 'followup_bootstrap')
+        # Either Enterprise present or not — both OK
+        self.assertIn(result['enterprise_module_present'], [True, False])
+
+    def test_bootstrap_idempotent(self):
+        wizard = self.env['fusion.migration.wizard'].create({})
+        first = wizard._followup_bootstrap_step()
+        second = wizard._followup_bootstrap_step()
+        # Second run skips what first created (or both no-op)
+        if first['enterprise_module_present']:
+            self.assertGreaterEqual(second['skipped'], first['created'])