Fix FBT001 in scripts/migrate_to_jinja2.py (missed by initial pass)

Agent-Logs-Url: https://github.com/GitHubSecurityLab/seclab-taskflow-agent/sessions/3c237b9a-7f89-4863-9650-2c7b11047490

Co-authored-by: kevinbackhouse <4358136+kevinbackhouse@users.noreply.github.com>

Author: Copilot

scripts/migrate_to_jinja2.py

@@ -21,7 +21,7 @@
 class TemplateMigrator:
     """Migrates custom template syntax to Jinja2."""
 
-    def __init__(self, dry_run: bool = False):
+    def __init__(self, *, dry_run: bool = False):
         self.dry_run = dry_run
         self.transformations: List[Tuple[str, str]] = []
 
@@ -133,7 +133,7 @@ def _show_diff(self, original: str, migrated: str):
                 print(f"  - {orig}")
                 print(f"  + {mig}")
 
-    def migrate_directory(self, directory: Path, recursive: bool = True) -> int:
+    def migrate_directory(self, directory: Path, *, recursive: bool = True) -> int:
         """Migrate all YAML files in directory.
 
         Returns: