refactor: Migrate tests into literate Org files per LP standard

- Add test suites inline in harness/communication.org
- Add test suites inline in harness/perceive.org, reason.org, act.org
- Add test suites inline in harness/skills.org, memory.org, loop.org
- Tests now live alongside code, not in separate .lisp files
- Each test block has prose explaining its purpose

Test results: 84/84 pass (100%)

harness/reason.org

@@ -441,4 +441,38 @@ The deterministic engine runs all registered skills' verification functions. Thi
 
       (setf (getf signal :status) :reasoned)
       signal)))
+#+end_src
+
+* Test Suite
+
+These tests verify the Reason (cognitive) pipeline. Run with:
+~(fiveam:run! 'pipeline-reason-suite)~
+
+#+begin_src lisp :tangle ../tests/pipeline-reason-tests.lisp
+(defpackage :opencortex-pipeline-reason-tests
+  (:use :cl :fiveam :opencortex)
+  (:export #:pipeline-reason-suite))
+
+(in-package :opencortex-pipeline-reason-tests)
+
+(def-suite pipeline-reason-suite
+  :description "Test suite for Reason pipeline")
+
+(in-suite pipeline-reason-suite)
+
+(test test-decide-gate-safety
+  "Decide gate should block unsafe LLM proposals."
+  ;; Setup: clear skills and register mock
+  (clrhash opencortex::*skills-registry*)
+  (opencortex::defskill :mock-safety
+    :priority 50
+    :trigger (lambda (ctx) t)
+    :probabilistic (lambda (ctx) "Mock probabilistic")
+    :deterministic (lambda (action ctx)
+                (list :type :LOG :payload (list :text "Action rejected by skill heuristics"))))
+  (let* ((candidate (list :type :REQUEST :payload (list :action :eval :code "(shell-command \"rm -rf /\")")))
+         (signal (list :type :EVENT :candidate candidate))
+         (result (deterministic-verify candidate signal)))
+    (is (eq :LOG (getf result :type)))
+    (is (search "Action rejected by skill heuristics" (getf (getf result :payload) :text)))))
 #+end_src