Expand description
Single connection attempt without retry logic. Tunes h2 transport
windows for loopback-to-Cocoon traffic (4 MB stream / 16 MB connection)
so a single rust-analyzer diagnostic emit (200-500 KB) doesn’t cause
WINDOW_UPDATE ping-pong.
On success stores the connected CocoonClient in
Shared::SIDECAR_CLIENTS. If LAND_VINE_STREAMING=1 is set we also
open the bidirectional streaming multiplexer alongside the unary
client; failures there are logged and tolerated (Cocoon’s streaming
handler tree is still on its way).