[WIP] Update files from Relayer's `SendMetaTxnWithBridgeGas`#339

Draft

shunkakinoki wants to merge 5 commits intomasterfrom

relayer-front-update

Commits on Jan 26, 2026

Commits on Feb 4, 2026

Update relayer mock and proto for bridge gas handling
shunkakinoki
committed

Commits on Feb 20, 2026

chore(relayer): sync bridge-gas client structs with relayer
shunkakinoki
committed