feat: protect responsive board layouts

packages/db/migrations/postgresql/0010_add_layout_role.sql

@@ -0,0 +1 @@
+ALTER TABLE "layout" ADD COLUMN "role" varchar(16) DEFAULT 'custom' NOT NULL;

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

@@ -85,6 +85,13 @@
       "when": 1786212457549,
       "tag": "0011_add_layout_gutters",
       "breakpoints": true
+    },
+    {
+      "idx": 12,
+      "version": "7",
+      "when": 1786215201393,
+      "tag": "0012_add_layout_role",
+      "breakpoints": true
     }
   ]
 }