feat: phoenixd ln backend #1026

Job	Run time
Format	6s
Build (stable, -p cdk)	1m 28s
Build WASM (stable, -p cdk)	1m 29s
Build (stable, -p cdk --no-default-features)	1m 24s
Build WASM (stable, -p cdk --no-default-features)	1m 36s
Build (stable, -p cdk --no-default-features --features wallet)	1m 55s
Build WASM (stable, -p cdk --no-default-features --features wallet)	3m 39s
Build (stable, -p cdk --no-default-features --features mint)	1m 24s
Build WASM (stable, -p cdk-js)	1m 40s
Build (stable, -p cdk-redb)	1m 48s
Build (stable, -p cdk-sqlite)	2m 14s
Build (stable, -p cdk-axum)	1m 17s
Build (stable, -p cdk-cln)	1m 11s
Build (stable, -p cdk-phoenixd)	1m 29s
Build (stable, -p cdk-strike)	2m 0s
Build (stable, -p cdk-fake-wallet)	1m 10s
Build (stable, --bin cdk-cli)	2m 47s
Build (stable, --bin cdk-mintd)	2m 59s
	31m 36s

Provide feedback