Revert "fix: default board roundness to sm"

This reverts commit c235cbdf2b.

packages/db/migrations/sqlite/meta/_journal.json

@@ -323,13 +323,6 @@
       "when": 1786217088950,
       "tag": "0045_add_assistant_tables",
       "breakpoints": true
-    },
-    {
-      "idx": 46,
-      "version": "6",
-      "when": 1787402621976,
-      "tag": "0046_pale_madame_web",
-      "breakpoints": true
     }
   ]
 }