Tangle emacs-edit and lisp-utils skills, update package exports

- Add vector search exports (get-embedding, cosine-similarity, semantic-search)
- Add tool permissions exports to package.lisp
- Add tool-permissions-tests to asdf test system
- Tangled org-skill-emacs-edit.org and org-skill-lisp-utils.org
- Fixed emacs-edit-tests.lisp (was missing closing paren)
- Now 77/77 tests passing

opencortex.asd

@@ -48,7 +48,8 @@
                 (:file "tests/memory-tests")
                 (:file "tests/immune-system-tests")
                 (:file "tests/emacs-edit-tests")
-                (:file "tests/lisp-utils-tests"))
+                (:file "tests/lisp-utils-tests")
+                (:file "tests/tool-permissions-tests"))
 
    :perform (test-op (o s)
               (uiop:symbol-call :fiveam :run!