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

crates/metacrate-grid-agent/tests/dependency_policy.rs

@@ -2,7 +2,8 @@ use std::collections::BTreeSet;
 use std::fs;
 use std::path::{Path, PathBuf};
 
-const ALLOWED_DEPENDENCIES: [&str; 10] = [
+const ALLOWED_DEPENDENCIES: [&str; 12] = [
+    "crossterm",
     "libremetaverse",
     "libremetaverse-types",
     "reqwest",
@@ -13,6 +14,7 @@ const ALLOWED_DEPENDENCIES: [&str; 10] = [
     "tokio",
     "tokio-rustls",
     "url",
+    "unicode-width",
 ];
 
 #[test]
@@ -48,7 +50,7 @@ fn runtime_source_has_no_subprocess_or_native_abi_escape_hatch() {
     let mut files = Vec::with_capacity(20);
     collect_rust_files(&source, &mut files);
     assert!(
-        files.len() <= 26,
+        files.len() <= 28,
         "source-file count needs a reviewed bound update"
     );
     for path in files {