* chore: bump anthropic SDK
* chore: update anthropic config settings (fileSupport, default models)
* feat: anthropic multi modal formatting
* refactor: update vision models and use endpoint specific max long side resizing
* feat(anthropic): multimodal messages, retry logic, and messages payload
* chore: add more safety to trimming content due to whitespace error for assistant messages
* feat(anthropic): token accounting and resending multiple images in progress
* chore: bump data-provider
* feat(anthropic): resendImages feature
* chore: optimize Edit/Ask controllers, switch model back to req model
* fix: false positive of invalid model
* refactor(validateVisionModel): use object as arg, pass in additional/available models
* refactor(validateModel): use helper function, `getModelsConfig`
* feat: add modelsConfig to endpointOption so it gets passed to all clients, use for properly validating vision models
* refactor: initialize default vision model and make sure it's available before assigning it
* refactor(useSSE): avoid resetting model if user selected a new model between request and response
* feat: show rate in transaction logging
* fix: return tokenCountMap regardless of payload shape
* fix: handle non-assistant role ChatCompletionMessage error
* refactor(ModelController): decouple res.send from loading/caching models
* fix(custom/initializeClient): only fetch custom endpoint models if models.fetch is true
* refactor(validateModel): load models if modelsConfig is not yet cached
* docs: update on file upload rate limiting
* refactor: add ViolationTypes enum and add new violation for illegal model requests
* feat: validateModel middleware to protect the backend against illicit requests for unlisted models
