Revert "fix: disable LoRA export for now" (#308)

This reverts commit 025ab3a881.

Co-authored-by: Andrew Patrikalakis <anrp@tri.global>

src/heretic/main.py

@@ -140,18 +140,13 @@ def obtain_merge_strategy(settings: Settings, model: Model) -> str | None:
                 value="merge",
             ),
             Choice(
-                    title="Cancel",
-                    value="cancel",
+                title="Save LoRA adapter only (can be merged later)",
+                value="adapter",
             ),
         ],
     )
 
-        if strategy == "cancel":
-            return None
-
     return strategy
-    else:
-        return "merge"
 
 
 def run():