Implement cross-platform grid agent operator TUI (#128)

crates/metacrate-grid-agent/Cargo.toml

@@ -9,6 +9,7 @@ description = "Bounded pure-Rust OpenSim grid-agent service foundation"
 publish = false
 
 [dependencies]
+crossterm = "0.29"
 libremetaverse = { version = "0.0.1", path = "../libremetaverse", default-features = false, optional = true }
 libremetaverse-types = { version = "0.0.1", path = "../libremetaverse-types" }
 reqwest = { version = "0.13.4", default-features = false, features = ["rustls"] }
@@ -19,6 +20,7 @@ sha2 = "0.11"
 tokio = { version = "1.53.1", features = ["macros", "rt", "sync", "time"] }
 tokio-rustls = { version = "0.26.4", default-features = false, features = ["aws_lc_rs", "tls12"] }
 url = "2.5.8"
+unicode-width = "0.2"
 
 [dev-dependencies]
 tokio = { version = "1.53.1", features = ["test-util"] }