tests: Add FiveAM tests for v0.2.0 completion

Self-edit: 5 new tests (apply success/not-found/file-not-found, parse-location x2)
Config-manager: 4 new tests (get-oc-config-dir, save-providers, configure-provider)
Gateway-manager: 2 new tests (multiple-platforms, registration)

Tier 1 Chaos: Verified org files pass structural balance
Note: Some tests have issues - config tests use functions not exported, one self-edit test has search function issue. Pre-existing test failures in LITERATE-PROGRAMMING (2) and DIAGNOSTICS (1).

tests/pipeline-reason-tests.lisp

@@ -0,0 +1,26 @@
+(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)))))