hivectl: add agent <name> watch to follow live events from the CLI

hivectl/Cargo.toml

@@ -13,12 +13,19 @@ path = "src/main.rs"
 
 [dependencies]
 anyhow.workspace = true
+# `agent <name> watch` — bare HTTP/1.1 client over the per-agent unix
+# socket, same crate family `hive-agent/src/web_ui/proxy.rs` uses for the
+# reverse direction.
+bytes = "1"
 clap.workspace = true
 clap_complete.workspace = true
 clap-markdown = "0.1"
 hive-host-sock.workspace = true
 hive-sh4re.workspace = true
 hive-types.workspace = true
+http-body-util.workspace = true
+hyper.workspace = true
+hyper-util.workspace = true
 indicatif.workspace = true
 libc.workspace = true
 serde_json.workspace = true