fix: avoid tablespace privilege requirement during init backup

backend/app/services/system_initializer.py

@@ -949,6 +949,7 @@ def backup_mysql_database(settings: object, output_dir: str | Path) -> str:
         f"--defaults-extra-file={defaults_path}",
         f"--result-file={backup_path}",
         "--single-transaction",
+        "--no-tablespaces",
         "--routines",
         "--triggers",
         database,

backend/tests/test_system_initializer_reset.py

@@ -194,6 +194,7 @@ class SystemInitializerResetTest(unittest.TestCase):
 
         self.assertTrue(backup_path.endswith(".sql"))
         self.assertEqual(len(commands), 1)
+        self.assertIn("--no-tablespaces", commands[0])
         self.assertFalse(any("secret" in part for part in commands[0]))
         defaults_arg = next(part for part in commands[0] if part.startswith("--defaults-extra-file="))
         self.assertFalse(Path(defaults_arg.split("=", 1)[1]).exists())