Module promote 

cmd_promote migration. See cli::store for the design pattern.

Two axes of promotion

• Horizontal (default): bump the memory’s tier to long. Sets expires_at = "" to clear the inherited tier-default TTL.
• Vertical (--to-namespace): clone the memory into an ancestor namespace; the original is untouched, the tier is preserved.

Structs

PromoteArgs

Functions

cmd_promote

promote handler.