replace ContainerRuntime CLI to Bollard crate (default: docker socket)

limit tool result to open router tool response (with truncated info for
ai)

Hard kill if graceful shutdown is too long

crates/devcontainer-rs/Cargo.toml

@@ -4,7 +4,12 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
+bollard = "0.21"
+bytes = { workspace = true }
+futures-util = { workspace = true }
+tar = "0.4"
 tokio = { workspace = true }
+tokio-stream = { workspace = true }
 serde = { workspace = true }
 serde_json = { workspace = true }
 anyhow = { workspace = true }