feat: Introduce settings package and refactor constants

- Added a new `setting` package to replace the `constant` package for configuration management, improving code organization and clarity.
- Moved various configuration variables such as `ServerAddress`, `PayAddress`, and `SensitiveWords` to the new `setting` package.
- Updated references throughout the codebase to use the new `setting` package, ensuring consistent access to configuration values.
- Introduced new files for managing chat settings and midjourney settings, enhancing modularity and maintainability of the code.

relay/relay-text.go

@@ -15,6 +15,7 @@ import (
 	relaycommon "one-api/relay/common"
 	relayconstant "one-api/relay/constant"
 	"one-api/service"
+	"one-api/setting"
 	"strings"
 	"time"
 
@@ -100,7 +101,7 @@ func TextHelper(c *gin.Context) (openaiErr *dto.OpenAIErrorWithStatusCode) {
 	var modelRatio float64
 	//err := service.SensitiveWordsCheck(textRequest)
 
-	if constant.ShouldCheckPromptSensitive() {
+	if setting.ShouldCheckPromptSensitive() {
 		err = checkRequestSensitive(textRequest, relayInfo)
 		if err != nil {
 			return service.OpenAIErrorWrapperLocal(err, "sensitive_words_detected", http.StatusBadRequest)