1.3.2: carry UnitKey.variant_number (all sources emit 0)

Construct unit keys via UnitKey::new; ordinary content is variant 0. Inherits libfreemkv 1.3.2. No behaviour change.

src/keydb.rs

@@ -184,10 +184,7 @@ impl KeydbSource {
         // 1. Terminal Unit Keys stored in the entry — directly usable, no
         //    derivation. Preserve the keydb's CPS numbering (idx = num - 1).
         for (num, key) in &entry.unit_keys {
-            keys.push(UnitKey {
-                idx: num.saturating_sub(1),
-                key: *key,
-            });
+            keys.push(UnitKey::new(num.saturating_sub(1), *key));
         }
 
         // The disc's encrypted title keys (from Unit_Key_RO.inf) — what every

src/lib.rs

@@ -47,10 +47,7 @@ pub(crate) fn uks_from_vuk(vuk: &[u8; 16], enc_title_keys: &[[u8; 16]]) -> Vec<U
     enc_title_keys
         .iter()
         .enumerate()
-        .map(|(i, e)| UnitKey {
-            idx: i as u32,
-            key: libfreemkv::aacs::derive::decrypt_unit_key(vuk, e),
-        })
+        .map(|(i, e)| UnitKey::new(i as u32, libfreemkv::aacs::derive::decrypt_unit_key(vuk, e)))
         .collect()
 }
 

src/online.rs

@@ -306,7 +306,7 @@ impl OnlineSource {
         // A terminal UK is used directly (CPS unit 0 → committed cps 1, matching
         // the old `Key::Unit(vec![(1, uk)])`).
         if let Some(uk) = json.get("UK").and_then(|u| u.as_str()).and_then(parse_uk) {
-            return vec![UnitKey { idx: 0, key: uk }];
+            return vec![UnitKey::new(0, uk)];
         }
         // A VUK is derived to the terminal keys locally, via the disc's
         // encrypted title keys from the context — the library owns the crypto.