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/tests/fixtures/addressables_regression/previous_catalog.json

@@ -0,0 +1,9 @@
+{
+  "m_LocatorId": "AddressablesMainContentCatalog",
+  "m_InternalIdPrefixes": [],
+  "m_InternalIds": [
+    "shared_assets_previous.bundle",
+    "catalog_previous.json",
+    "TableBundles/ExcelDB.db"
+  ]
+}