pub const PARK_RATE_LIMIT: u32 = 6;Expand description
How many bot.did.parkKey and describeParkedKey calls one caller
address may make per PARK_RATE_WINDOW, absent configuration.
Reasonable range: 1 to 1000. A machine parks once; six covers one retrying through a flaky first boot. A lab of machines behind one address that come up together waits out the window rather than being refused for good.