wip: paren balance fixes in policy blocks + engineering standards scaffolding

- Fix unbalanced parens in org-skill-policy.org (8 blocks)
- Add org-skill-engineering-standards.lisp scaffolding
- Add org-skill-self-fix.lisp helper
- Add test runners and tool-permissions tests

Note: Some fixes may be over-corrections. Full structural audit needed.

run-tool-tests.lisp

@@ -0,0 +1,10 @@
+(load "/home/user/quicklisp/setup.lisp")
+(push #p"./" asdf:*central-registry*)
+(ql:quickload :fiveam :verbose nil)
+(asdf:load-system :opencortex :verbose nil)
+(load "library/gen/org-skill-tool-permissions.lisp")
+(load "tests/tool-permissions-tests.lisp")
+
+(format t "~%=== Tool Permissions Tests ===~%")
+(fiveam:run! 'opencortex-tool-permissions-tests::tool-permissions-suite)
+(format t "~%=== DONE ===~%")