chore: add changeset for security hardening fixes

Author: wcole1-godaddy

.changeset/curvy-wolves-prove.md

@@ -0,0 +1,11 @@
+---
+"@godaddy/cli": patch
+---
+
+Hardened CLI security in three areas without changing intended workflows:
+
+- Block extension deploy path traversal by validating `handle` and `source` stay within the extension workspace.
+- Quote and escape generated `.env` values to prevent newline/comment-based env injection.
+- Restrict truncation `full_output` dump permissions to owner-only (`0700` dir, `0600` files).
+
+Also adds regression tests covering these protections.