* Updated relay/channel/gemini package to use gin-gonic/gin for routing
* Added timeouts, environment variable for proxy, and error handling for HTTP clients in relay/util/init.go
* Improved error handling, URL path cases, and channel selection logic in middleware/distributor.go
* Added Content-Type header, closed request bodies, and added context to requests in relay/channel/common.go
* Upgraded various dependencies in go.mod
* Modified the GetRequestURL method in relay/channel/gemini/adaptor.go to include a "key" parameter in the URL and set a default version of "v1beta"
* Added io and net/http packages in relay/channel/gemini/adaptor.go and relay/channel/gemini/main.go
* Added a struct for GeminiStreamResp and modified response handling in relay/channel/gemini/main.go
* Imported packages for io and net/http added, gin-gonic/gin package added, and error handling improved in relay/channel/gemini/main.go
* feat: add user list sorting and pagination enhancements
* feat: add user list sorting for THEME=air
* feat: add token list sorting and pagination enhancements
* feat: add token list sorting for THEME=air
- Refactor error handling using `errors/v2` package for improved error management and formatting
- Implement changes in relay/controller/text.go, controller/channel-test.go, controller/relay.go, common/message/email.go, relay/controller/audio.go, controller/channel-billing.go, relay/controller/helper.go, relay/channel/common.go, relay/channel/minimax/main.go, and common/message/main.go
- Add package imports and update package paths for better code organization
- Replace hardcoded strings with error variables for consistency and readability
- Implement secure methods for generating unique Message-ID
- Improve SMTP handling and authentication in email.go
- Update response handling and error messages for better user experience
- Add constant checks and modify functions based on imageRequest parameters in helper.go
- Use `http.NewRequest` instead of `fmt.Fprint` for improved request handling in relay/channel/common.go
- Update error handling and formatting for better consistency across all files
