feat: add capnp

Signed-off-by: kjuulh <contact@kjuulh.io>

crates/sq-sdk/Cargo.toml

@@ -4,11 +4,18 @@ version.workspace = true
 edition.workspace = true
 
 [dependencies]
+sq-capnp-interface = { workspace = true }
 sq-grpc-interface = { workspace = true }
 sq-models = { workspace = true }
 
+capnp = { workspace = true }
+bytes = { workspace = true }
+
 anyhow = { workspace = true }
 tokio = { workspace = true }
 tracing = { workspace = true }
 tonic = { workspace = true }
 thiserror = { workspace = true }
+tokio-stream = { workspace = true }
+tokio-util = { workspace = true, features = ["codec"] }
+futures = { workspace = true }