- Refactor constant definitions and organization
- Clean up package level variables and functions
- Introduce new `relaymode` and `apitype` packages for constant definitions
- Refactor and simplify code in several packages including `openai`, `relay/channel/baidu`, `relay/util`, `relay/controller`, `relay/channeltype`
- Add helper functions in `relay/channeltype` package to convert channel type constants to corresponding API type constants
- Remove deprecated functions such as `ResponseText2Usage` from `relay/channel/openai/helper.go`
- Modify code in `relay/util/validation.go` and related files to use new `validator.ValidateTextRequest` function
- Rename `util` package to `relaymode` and update related imports in several packages
* Update CI workflow with changes to branch names, builds, and jobs
* Introduce new 'SHORT\_SHA' env variable for CI workflow
* Rename 'docker' job to 'build\_latest' and utilize it in 'deploy' job
* Implement specific branch builds and 'deploy' job for a specific host
- Updated error handling in `common/gin.go` to provide better context for debugging
- Wrapped errors with additional information to improve error messages
- Modified `UnmarshalBodyReusable` function to return errors with extra context and reset request body after processing
* 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
