chore: Delete dated artifacts and orphaned test files

Removed:
- brain.log (dated log file)
- setup_final.log (empty setup artifact)
- test_chaos.lisp (chaos test harness)
- run-tool-tests.lisp (duplicate test runner)

run-tool-tests.lisp

@@ -1,10 +0,0 @@
-(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 ===~%")