🚀 feat(auth): support new model API paths in authentication and routing

- Updated TokenAuth middleware to handle requests for both `/v1beta/models/` and `/v1/models/`.
- Adjusted distributor middleware to recognize the new model path.
- Enhanced relay mode determination to include the new model path.
- Added route for handling POST requests to `/models/*path`.

These changes ensure compatibility with the new model API structure, improving the overall routing and authentication flow.

router/relay-router.go

@@ -63,6 +63,7 @@ func SetRelayRouter(router *gin.Engine) {
 		httpRouter.DELETE("/models/:model", controller.RelayNotImplemented)
 		httpRouter.POST("/moderations", controller.Relay)
 		httpRouter.POST("/rerank", controller.Relay)
+		httpRouter.POST("/models/*path", controller.Relay)
 	}
 
 	relayMjRouter := router.Group("/mj")