Implement forward proxy with OpenTelemetry observability

Cargo.toml

@@ -0,0 +1,29 @@
+[package]
+name = "hermes"
+version = "0.1.0"
+edition = "2024"
+rust-version = "1.85"
+description = "A minimal HTTP forward proxy with OpenTelemetry observability"
+license = "Apache-2.0"
+
+[dependencies]
+bytes = "1.11"
+http = "1.4"
+http-body-util = "0.1.5"
+hyper = { version = "1.12", features = ["client", "http1", "server"] }
+hyper-util = { version = "0.1.21", features = ["client-legacy", "http1", "tokio"] }
+opentelemetry = "0.33.1"
+opentelemetry-appender-tracing = "0.33.1"
+opentelemetry-otlp = "0.33.1"
+opentelemetry_sdk = "0.33.1"
+thiserror = "2"
+tokio = { version = "1", features = ["io-util", "macros", "net", "rt-multi-thread", "signal", "sync", "time"] }
+tracing = "0.1"
+tracing-opentelemetry = "0.34"
+tracing-subscriber = { version = "0.3", features = ["env-filter", "fmt"] }
+
+[lints.rust]
+unsafe_code = "forbid"
+
+[lints.clippy]
+all = "warn"