- vision_rag/vision_rag.py: cohere's embeddings field is float_ (alias 'float'
only affects serialization); .float raises AttributeError, swallowed into
'Failed to get embedding', so the app never works. Use .float_ (4 sites).
- deepseek_local_rag_agent: import OllamaEmbedder from agno.knowledge.embedder
(agno 2.x moved it; old path ModuleNotFoundErrors), replace show_tool_calls
with debug_mode (removed from Agent in 2.x), pin agno>=2.2.10, add pypdf
(PyPDFLoader is used). Mirrors the already-migrated qwen_local_rag sibling.
Fixes#1023