feat(directives): add rule-statement header to 9-16 of 66 v1.md files

conductor/directives/ban_local_imports/v1.md

@@ -1,3 +1,5 @@
+# Local imports inside function bodies are banned (use module-level imports)
+
 - Local imports inside functions (top-of-module imports only)
 
 **The one exception:** the literal wire boundary (TOML/JSON parse functions) may use `dict[str, Any]` + `Metadata.from_dict(...)`.