Auto-confirm overwrite and clean up save feedback

src/mudlib/if_session.py

@@ -127,12 +127,22 @@ class IFSession:
             self.process.stdin.write(f"{save_path_str}\n".encode())
             await self.process.stdin.drain()
 
-            # Read confirmation
-            confirmation = await self._read_response()
+            # Read response - might be "Ok." or "Overwrite existing file?"
+            response = await self._read_response()
+
+            # Auto-confirm overwrite if file already exists
+            if "overwrite" in response.lower():
+                self.process.stdin.write(b"yes\n")
+                await self.process.stdin.drain()
+                response = await self._read_response()
+
+            # Check for failure
+            if "failed" in response.lower():
+                return "error: save failed"
 
             # Mark as saved
             self._saved = True
-            return confirmation
+            return "saved."
         except Exception as e:
             return f"error: save failed ({e})"