Migrate parts data to assets repo

README.md

@@ -166,6 +166,22 @@ outputs:
 build:
   keep_existing_haks: false
 
+generated_assets:
+  topdata_2da:
+    - id: parts
+      source: topdata
+      output: "{paths.cache}/generated-assets/parts-2da"
+      include_datasets: [parts/**]
+      package_root: part
+      autogen:
+        id: parts
+        mode: parts_rows
+        root: part
+        include: ["**/*.mdl"]
+        derive:
+          kind: trailing_numeric_suffix
+          group_from: first_path_segment
+
 inventory:
   source_extensions: []      # empty means built-in NWN source extensions
   asset_extensions: []       # empty means built-in NWN asset extensions
@@ -234,6 +250,11 @@ of source, but they must not resolve to the repository root (`.`). Output and
 cache paths must stay relative to the repository root unless a specific setting
 documents otherwise.
 
+`generated_assets.topdata_2da` is for HAK repositories that need a small
+native-topdata subset packaged as HAK resources. It builds only `.2da` output,
+injects those generated files into `build-haks`, and rejects TLK-backed text
+because this path does not produce TLK packages.
+
 Extraction is deliberately guarded because it writes source files from binary
 archives. `extract.archives` is a list of glob patterns relative to
 `paths.build`; the default is only the configured module `.mod`. HAK extraction