Update docs, and download-models for title generation

docs/configuration/index.md

@@ -117,6 +117,11 @@ processing:
   chunking_tokenizer: "Qwen/Qwen3-Embedding-0.6B"
   chunking_merge_peers: true
   chunking_use_markdown_tables: false
+  auto_title: false              # Auto-generate titles on ingestion
+  title_model:
+    provider: ollama
+    name: gpt-oss
+    enable_thinking: false
   conversion_options:
     do_ocr: true
     force_ocr: false

haiku_rag_slim/haiku/rag/client.py

@@ -2034,6 +2034,11 @@ class HaikuRAG:
         pic_desc = self._config.processing.conversion_options.picture_description
         if pic_desc.enabled and pic_desc.model.provider == "ollama":
             required_models.add(pic_desc.model.name)
+        if (
+            self._config.processing.auto_title
+            and self._config.processing.title_model.provider == "ollama"
+        ):
+            required_models.add(self._config.processing.title_model.name)
 
         if not required_models:
             return