feat: track official versions and import resources

Persist official version-state, extend CAS/ResourceRepository import classification, and add offline catalog and failure regression fixtures.

Fixes #13

Fixes #12

Fixes #8

adapters/src/unity/serialized_file.rs

@@ -78,7 +78,7 @@ impl UnitySerializedFile {
             )?);
         }
 
-        let big_id_enabled = if version >= 11 && version < 14 {
+        let big_id_enabled = if (11..14).contains(&version) {
             reader.read_i32("big_id_enabled")?
         } else {
             0