pub const MAX_FRAME_BYTES: usize = _; // 67_108_864usizeExpand description
Ceiling on one [len: u32 LE][bytes] frame on the managed-command sockets,
enforced by both the server and LaserData Cloud. A reply above it is replaced by
a structured too-large error rather than truncated. The u32 length prefix
addresses far more (4 GiB), so this is a deliberate per-frame memory bound on
the whole-frame buffer, not a transport limit. Every consumer of the managed
sockets (the server-side dispatch, the streaming server sidecar, the reply-byte budget)
MUST source this one constant rather than redefining its own frame cap, so
the layers cannot disagree and a reply admitted by one is not rejected by the
next. Changing it moves all of them in lockstep.