Add write_soul method to MemorySystem

src/timmy/memory_system.py

@@ -572,6 +572,17 @@ def get_memory_context(query: str, max_tokens: int = 2000, **filters) -> str:
     if not context_parts:
         return ""
 
+    def write_soul(self, content: str) -> bool:
+        """Write content to soul.md — Timmy's core identity."""
+        try:
+            SOUL_PATH.parent.mkdir(parents=True, exist_ok=True)
+            SOUL_PATH.write_text(content)
+            logger.info("MemorySystem: Updated soul.md")
+            return True
+        except OSError as exc:
+            logger.error("Failed to write soul.md: %s", exc)
+            return False
+
     return "Relevant context from memory:\n" + "\n\n".join(context_parts)