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/perceive.org

@@ -219,4 +219,35 @@ Other sensors (heartbeats, interrupts) are processed synchronously to maintain o
 | :point-update | Emacs | Sync | Cursor moved to different headline |
 | :interrupt | System | Sync | SIGINT received |
 | :tool-output | Internal | Sync | Result from cognitive tool |
-| :loop-error | Internal | Sync | Error during signal processing |
+| :loop-error | Internal | Sync | Error during signal processing |
+
+* Test Suite
+
+These tests verify the Perceive pipeline. Run with:
+~(fiveam:run! 'pipeline-perceive-suite)~
+
+#+begin_src lisp :tangle ../tests/pipeline-perceive-tests.lisp
+(defpackage :opencortex-pipeline-perceive-tests
+  (:use :cl :fiveam :opencortex)
+  (:export #:pipeline-perceive-suite))
+
+(in-package :opencortex-pipeline-perceive-tests)
+
+(def-suite pipeline-perceive-suite
+  :description "Test suite for Perceive pipeline")
+
+(in-suite pipeline-perceive-suite)
+
+(test test-perceive-gate
+  "Perceive gate should update the object store and normalize signal."
+  (clrhash opencortex::*memory*)
+  (let* ((signal (list :type :EVENT :payload (list :sensor :buffer-update :ast (list :type :HEADLINE :properties (list :ID "test-node" :TITLE "Test") :contents nil))))
+         (result (perceive-gate signal)))
+    (is (eq :perceived (getf result :status)))
+    (is (not (null (gethash "test-node" opencortex::*memory*))))))
+
+(test test-depth-limiting
+  "Verify that the pipeline terminates runaway feedback loops."
+  (let ((runaway-signal (list :type :EVENT :depth 11 :payload (list :sensor :heartbeat))))
+    (is (null (process-signal runaway-signal)))))
+#+end_src