db.global stores bot-wide keys shared across all users and guilds.

BDFD equivalent: $getVar / $setVar (global scope).

Methods

Method	Description
await db.global.get(key)	Read value (falls back to config.globalVariables)
await db.global.set(key, value)	Write value
await db.global.delete(key)	Delete key

await db.global.set('maintenance', true);
const mode = await db.global.get('maintenance');