* feat: enhance API tool with body serialization and content type handling
* feat: enhance ToolConfig with import functionality and user action management
- Added ImportSpecModal to allow importing actions into the tool configuration.
- Implemented search functionality for user actions with expandable action details.
- Introduced method colors for better visual distinction of HTTP methods.
- Updated APIActionType and ParameterGroupType to include optional 'required' field.
- Refactored action rendering to improve usability and maintainability.
* feat: add base URL input to ImportSpecModal for action URL customization
* feat: update TestBaseAgentTools to include 'required' field for parameters
* feat: standardize API call timeout to DEFAULT_TIMEOUT constant
* feat: add import specification functionality and related translations for multiple languages
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Co-authored-by: Alex <a@tushynski.me>
