• Merge pull request #354 from jellydn/feat/ollama-provider
• fix(presets): make requiresApiKey required boolean, add sentinel docs
• fix(ollama): align property naming and descriptions
• feat(ui): add Ollama logo and make API key optional
• feat(ui): add Ollama provider presets to dashboard
• fix(api): skip API key prompt for local Ollama using noApiKey flag
• fix(api): skip API key prompt for local Ollama preset
• docs: add Ollama to Built-in Providers table and usage examples
• feat: add Ollama provider support