Add canvas size disable controls

src/db/index.js

@@ -29,6 +29,7 @@ async function ensureSchema(pool, options) {
       name VARCHAR(255) NOT NULL,
       width INT NOT NULL,
       height INT NOT NULL,
+      enabled TINYINT(1) NOT NULL DEFAULT 1,
       created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
       created_by INT NULL,
       modified_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,