feat: phoenixd ln backend #1037

Job	Run time
Format	8s
Build (stable, -p cdk)	1m 26s
Build WASM (stable, -p cdk)	1m 27s
Build (stable, -p cdk --no-default-features)	1m 0s
Build WASM (stable, -p cdk --no-default-features)	1m 5s
Build (stable, -p cdk --no-default-features --features wallet)	1m 14s
Build WASM (stable, -p cdk --no-default-features --features wallet)	1m 40s
Build (stable, -p cdk --no-default-features --features mint)	1m 9s
Build WASM (stable, -p cdk-js)	1m 48s
Build (stable, -p cdk-redb)	1m 25s
Build (stable, -p cdk-sqlite)	1m 52s
Build (stable, -p cdk-axum)	1m 28s
Build (stable, -p cdk-cln)	1m 19s
Build (stable, -p cdk-phoenixd)	1m 16s
Build (stable, -p cdk-strike)	1m 24s
Build (stable, -p cdk-fake-wallet)	1m 6s
Build (stable, --bin cdk-cli)	2m 26s
Build (stable, --bin cdk-mintd)	2m 42s
	25m 55s

Provide feedback