feat(package.json): add @ai-sdk/azure dependency to enable Azure OpenAI integration

style(HeroSection.tsx): update layout classes for better responsiveness and alignment in HeroSection component

style(HeroSection.tsx): update layout classes for better responsiveness and alignment in the HeroSection component

docs(prompt.ts): update assistant prompt to clarify focus on Solana and cryptocurrency tasks and improve user interaction

fix(close_empty_token_accounts.ts): reorder imports for better organization and readability

docs(prompt.ts): add $BRAIN token contract address to assistant prompt for user reference

feat(WelcomePage): increase rate limit from 10 to 60 requests per minute to enhance user experience

fix(app.ts): reduce rate limit from 100 to 10 requests per minute to enhance server performance and prevent abuse

style(AssetTransferModal.tsx, Sidebar.tsx, WalletModal.tsx, WalletSetupButton.tsx): update button layout to use flexbox for better responsiveness and alignment

feat(prompt.ts): update assistant prompt to enhance clarity and conciseness while maintaining essential information about capabilities and security measures

style(ChatInterface.tsx): update button styles for better visual consistency and user experience

refactor(WalletInfo.tsx): simplify onUserExited callback by removing balance check to streamline notification logic

fix(ChatInterface.tsx): add checks to ensure auto-scrolling only occurs when messages exist and user is at the bottom to enhance user experience

style(logo-group.svg): update SVG structure to include gradient and clipPath for improved rendering and visual consistency

feat(speech): implement speech-to-text functionality with audio upload and transcription