feat(soul): add safety module, expand connectors API, memory-recall bug notes

- safety.el/.elh: new safety module
- neuron-api.el, routes.el, soul.el, chat.el: connectors API expansion
- regenerated dist/ C artifacts
- MEMORY_RECALL_BUG.md: investigation notes

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

memory.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header — do not edit
+// auto-generated by elc --emit-header - do not edit
 extern fn tier_working() -> String
 extern fn tier_episodic() -> String
 extern fn tier_canonical() -> String