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/current_catalog.json

@@ -0,0 +1,38 @@
+{
+  "m_LocatorId": "AddressablesMainContentCatalog",
+  "m_InternalIdPrefixes": [
+    "https://fixture.invalid/current/"
+  ],
+  "m_Entries": [
+    {
+      "internal_id": "TableBundles/ExcelDB.db",
+      "hash": "current-table-hash",
+      "size": 4096,
+      "address": "ExcelDB",
+      "dependencies": []
+    },
+    {
+      "internal_id": "MediaResources-Windows/voice/title.acb",
+      "hash": "current-media-hash",
+      "size": 2048,
+      "address": "title",
+      "dependencies": []
+    },
+    {
+      "internal_id": "TextAssets/dialogue.csv",
+      "hash": "current-text-hash",
+      "size": 128,
+      "address": "dialogue",
+      "dependencies": []
+    },
+    {
+      "internal_id": "shared_assets_current.bundle",
+      "hash": "current-bundle-hash",
+      "size": 8192,
+      "address": "shared_assets_current",
+      "dependencies": [
+        "shared_dependencies.bundle"
+      ]
+    }
+  ]
+}