Prop 1060: Recover expired IBC client 07-tendermint-1808 (Osmosis <> Carbon)

The IBC client 07-tendermint-1808 on Osmosis, which tracks carbon-1, expired while Carbon was halted. This proposal replaces its state with that of the active substitute client 07-tendermint-3767 using MsgRecoverClient. The substitute matches in chain id, trust level, trusting period, unbonding period, clock drift, proof specs and upgrade path. The existing connections and channels (transfer/channel-188, transfer/channel-189) stay as they are, with no new channels or denoms. No funds are moved and no parameters change. Carbon's own client of Osmosis was recovered through Carbon governance (proposal 432). The recovery lets relayers finish the packets stuck since the expiry, so timed-out transfers can refund their senders on Osmosis. Forum discussion: https://forum.osmosis.zone/t/recover-expired-ibc-client-07-tendermint-1808-osmosis-carbon/4210