feat: add new AI tool components and functionalities

- create tool-input-available.tsx for image generation tool input UI
- create tool-input-streaming.tsx for web search tool input UI
- create tool-output-available.tsx to display available output from database queries
- create tool-output-error.tsx to handle and display errors from API requests
- implement tool.tsx to manage various tool states including approval and output handling
- add transcription.tsx for audio transcription functionality with segment display
- introduce voice-selector.tsx for selecting and previewing different voice options
- implement web-preview.tsx for displaying web content with navigation and console logging