Merge commit 'd803bfe2b1fe7f5e219e50ac20d6801a0a58ac75' as 'vendor/ruvector'

vendor/ruvector/crates/rvf/rvf-cli/src/output.rs

@@ -0,0 +1,21 @@
+//! Shared output formatting helpers.
+
+use serde::Serialize;
+
+/// Print a value as pretty-printed JSON.
+pub fn print_json<T: Serialize>(value: &T) {
+    println!(
+        "{}",
+        serde_json::to_string_pretty(value).unwrap_or_default()
+    );
+}
+
+/// Print a key-value pair with aligned formatting.
+pub fn print_kv(key: &str, value: &str) {
+    println!("  {:<20} {}", key, value);
+}
+
+/// Format a byte array as a hex string.
+pub fn hex(bytes: &[u8]) -> String {
+    bytes.iter().map(|b| format!("{b:02x}")).collect()
+}