Add Assistent reference books and remove training dataset output.

Introduce books/ with civitai-krea2 and HF fictext builders, sha-diff seed to VM, and drop train.jsonl from the civitai scrape pipeline.

Co-authored-by: Cursor <cursoragent@cursor.com>

books/README.md

@@ -0,0 +1,27 @@
+# Assistent reference books (local)
+
+FTS `search.jsonl` indexes for Swarm Assistent Knowledge Hub. **Not** in Typer main CLI — use:
+
+```text
+books-dataset.bat              # python -m gpu_rent.books
+python -m gpu_rent.books list
+python -m gpu_rent.books build civitai
+python -m gpu_rent.books download fictext --variant both
+gpu-rent seed-books            # push changed books → VM
+```
+
+## Layout
+
+| Path | Role |
+| --- | --- |
+| `civitai-krea2/` | From `civitai-dataset split` → `book.yaml` + `search.jsonl` + `meta.json` |
+| `ru-fictext-rplus/` | HF `ru-fictext-nsfw-data-r+.parquet` → chunked search rows |
+| `ru-fictext-full/` | HF full parquet |
+
+On `up` / `seed-personas` / `seed-books`: changed books (by `meta.content_sha`) → `/mnt/swarm_data/Assistent/books/<id>/`.
+
+Civitai scrape: manual on laptop; `up` pushes when local book changed.
+
+Fictext: `pip install 'gpu-rent[books]'` (pyarrow) for build.
+
+See [docs/local-folders.md](../docs/local-folders.md), [datasets/README.md](../datasets/README.md).