* feat: o1 default response sender string
* feat: add o1 models to default openai models list, add `no_system_messages` error type; refactor: use error type as localization key
* refactor(MessageEndpointIcon): differentiate openAI icon model color for o1 models
* refactor(AnthropicClient): use new input/output tokens keys; add prompt caching for claude-3-opus
* refactor(BaseClient): to use new input/output tokens keys; update typedefs
* feat: initial o1 model handling, including token cost complexity
* EXPERIMENTAL: special handling for o1 model with custom instructions