refactor(config): configuration management system

stats:
  lines: "+6178/-44 (net +6134)"
  files: 13
  complexity: "Stable complexity"

Co-authored-by: Koru Agent <agent@coru.dev>

Author: tom-sapletta-com

.gitignore

@@ -207,3 +207,6 @@ credentials/
 # Separate projects
 webops/
 .redsl/
+
+# koru runtime artefacts (generated)
+.koru/

.koru/event-store.jsonl

@@ -3,6 +3,6 @@
   "project": "/home/tom/github/semcod/code2llm",
   "runtime_dir": ".planfile/.koru",
   "schema": "koru.project/v1",
-  "source": "auto",
-  "updated_at": "2026-05-25T19:14:12.302770+00:00"
+  "source": "init",
+  "updated_at": "2026-07-05T23:19:11.602652+00:00"
 }