feat(v0.3.0): Event Orchestrator skill

- New system-event-orchestrator skill with hook registry, cron registry, and tier classifier

- Three dispatch tiers: :reflex (no LLM), :cognition (light), :reasoning (full)

- Org-mode timestamp parsing for repeat patterns (+1w, +1d, +1m)

- Registers on heartbeat via defskill, dispatches due cron jobs

- Fix all remaining harness-log → log-message references across org files

org/programming-org.org

@@ -76,7 +76,7 @@ Returns the filtered content as a string."
          (filetags (org-filetags-extract raw)))
     (if (org-privacy-tag-p filetags)
         (progn
-          (harness-log "UTILS-ORG: Blocked read of ~a — file-level privacy tag(s) ~a" filepath filetags)
+          (log-message "UTILS-ORG: Blocked read of ~a — file-level privacy tag(s) ~a" filepath filetags)
           nil)
         (org-privacy-strip raw))))
 #+end_src
@@ -184,7 +184,7 @@ Returns the filtered content as a string."
 (defun org-modify (filepath id changes)
   "Placeholder for Emacs-driven modification of a specific node."
   (declare (ignore changes))
-  (harness-log "UTILS-ORG: Applying changes to ~a in ~a" id filepath)
+  (log-message "UTILS-ORG: Applying changes to ~a in ~a" id filepath)
   t)
 #+end_src