feat: add capnp

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

Cargo.toml

@@ -1,5 +1,5 @@
 [workspace]
-members = ["crates/*"]
+members = ["crates/*", "examples/*"]
 resolver = "2"
 
 [workspace.package]
@@ -7,6 +7,7 @@ version = "0.1.0"
 edition = "2024"
 
 [workspace.dependencies]
+sq-capnp-interface = { path = "crates/sq-capnp-interface" }
 sq-grpc-interface = { path = "crates/sq-grpc-interface" }
 sq-models = { path = "crates/sq-models" }
 sq-storage = { path = "crates/sq-storage" }
@@ -20,7 +21,12 @@ serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 tracing = { version = "0.1", features = ["log"] }
 thiserror = "2"
-tracing-subscriber = { version = "0.3", features = ["env-filter", "json"] }
+tracing-subscriber = { version = "0.3", features = ["env-filter", "json", "registry"] }
+tracing-opentelemetry = "0.32"
+opentelemetry = { version = "0.31", features = ["trace", "metrics"] }
+opentelemetry_sdk = { version = "0.31", features = ["rt-tokio", "trace", "metrics"] }
+opentelemetry-otlp = { version = "0.31", features = ["grpc-tonic", "trace", "metrics"] }
+opentelemetry-semantic-conventions = "0.31"
 clap = { version = "4", features = ["derive", "env", "string"] }
 dotenvy = { version = "0.15" }
 async-trait = "0.1"
@@ -43,9 +49,13 @@ tonic-prost = "=0.14.2"
 uuid = { version = "1", features = ["v4", "v7"] }
 tokio-util = "0.7"
 tokio-stream = { version = "0.1", features = ["sync"] }
+async-stream = "0.3"
 crc32fast = "1"
 zstd = "0.13"
 object_store = { version = "0.12", features = ["aws"] }
 rand = "0.9"
 axum = "0.8"
 tower-http = { version = "0.6", features = ["trace"] }
+tempfile = "3"
+capnp = "0.20"
+capnpc = "0.20"