Revert "fix: default board roundness to sm"

This reverts commit c235cbdf2b.

packages/db/migrations/postgresql/0014_little_franklin_storm.sql

@@ -1 +0,0 @@
-ALTER TABLE "board" ALTER COLUMN "item_radius" SET DEFAULT 'sm';

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

@@ -99,13 +99,6 @@
       "when": 1786217088954,
       "tag": "0013_add_assistant_tables",
       "breakpoints": true
-    },
-    {
-      "idx": 14,
-      "version": "7",
-      "when": 1787402632156,
-      "tag": "0014_little_franklin_storm",
-      "breakpoints": true
     }
   ]
 }