Three fixes:
1. OllamaProvider now sends tools[] in native /api/chat requests
2. OllamaProvider parses tool_calls from response (OpenAI-compatible
format with function.name, function.arguments)
3. System prompt now lists available tools so LLM knows it can use
bash, curl, read/write files — stops saying "I cannot do that"
Tara Menon
59ef28ffab