feat: 添加应用骨架，配置化 zap 日志贯穿全链路

- cmd/server/main.go: 使用 logger.NewLogger(cfg.Log) 替代 zap.NewProduction()

- internal/app: 依赖注入组装 DB/Slurm/Service/Handler，传递 logger

- internal/middleware: RequestLogger 请求日志中间件

- internal/server: 统一响应格式和路由注册

- go.mod: module 更名为 gcy_hpc_server，添加 gin/zap/lumberjack/gorm 依赖

- 日志初始化失败时 fail fast (os.Exit(1))

- GormLevel 从配置传递到 NewGormDB，支持 YAML 独立配置

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

internal/server/server.go

@@ -0,0 +1,111 @@
+package server
+
+import (
+	"net/http"
+
+	"gcy_hpc_server/internal/middleware"
+
+	"github.com/gin-gonic/gin"
+	"go.uber.org/zap"
+)
+
+type JobHandler interface {
+	SubmitJob(c *gin.Context)
+	GetJobs(c *gin.Context)
+	GetJobHistory(c *gin.Context)
+	GetJob(c *gin.Context)
+	CancelJob(c *gin.Context)
+}
+
+type ClusterHandler interface {
+	GetNodes(c *gin.Context)
+	GetNode(c *gin.Context)
+	GetPartitions(c *gin.Context)
+	GetPartition(c *gin.Context)
+	GetDiag(c *gin.Context)
+}
+
+type TemplateHandler interface {
+	ListTemplates(c *gin.Context)
+	CreateTemplate(c *gin.Context)
+	GetTemplate(c *gin.Context)
+	UpdateTemplate(c *gin.Context)
+	DeleteTemplate(c *gin.Context)
+}
+
+// NewRouter creates a Gin engine with all API v1 routes registered with real handlers.
+func NewRouter(jobH JobHandler, clusterH ClusterHandler, templateH TemplateHandler, logger *zap.Logger) *gin.Engine {
+	gin.SetMode(gin.ReleaseMode)
+	r := gin.New()
+	r.Use(gin.Recovery())
+	if logger != nil {
+		r.Use(middleware.RequestLogger(logger))
+	}
+
+	v1 := r.Group("/api/v1")
+
+	jobs := v1.Group("/jobs")
+	jobs.POST("/submit", jobH.SubmitJob)
+	jobs.GET("", jobH.GetJobs)
+	jobs.GET("/history", jobH.GetJobHistory)
+	jobs.GET("/:id", jobH.GetJob)
+	jobs.DELETE("/:id", jobH.CancelJob)
+
+	v1.GET("/nodes", clusterH.GetNodes)
+	v1.GET("/nodes/:name", clusterH.GetNode)
+
+	v1.GET("/partitions", clusterH.GetPartitions)
+	v1.GET("/partitions/:name", clusterH.GetPartition)
+
+	v1.GET("/diag", clusterH.GetDiag)
+
+	templates := v1.Group("/templates")
+	templates.GET("", templateH.ListTemplates)
+	templates.POST("", templateH.CreateTemplate)
+	templates.GET("/:id", templateH.GetTemplate)
+	templates.PUT("/:id", templateH.UpdateTemplate)
+	templates.DELETE("/:id", templateH.DeleteTemplate)
+
+	return r
+}
+
+// NewTestRouter creates a router for testing without real handlers.
+func NewTestRouter() *gin.Engine {
+	gin.SetMode(gin.TestMode)
+	r := gin.New()
+	r.Use(gin.Recovery())
+	v1 := r.Group("/api/v1")
+	registerPlaceholderRoutes(v1)
+	return r
+}
+
+func registerPlaceholderRoutes(v1 *gin.RouterGroup) {
+	jobs := v1.Group("/jobs")
+	jobs.POST("/submit", notImplemented)
+	jobs.GET("", notImplemented)
+	jobs.GET("/history", notImplemented)
+	jobs.GET("/:id", notImplemented)
+	jobs.DELETE("/:id", notImplemented)
+
+	v1.GET("/nodes", notImplemented)
+	v1.GET("/nodes/:name", notImplemented)
+
+	v1.GET("/partitions", notImplemented)
+	v1.GET("/partitions/:name", notImplemented)
+
+	v1.GET("/diag", notImplemented)
+
+	templates := v1.Group("/templates")
+	templates.GET("", notImplemented)
+	templates.POST("", notImplemented)
+	templates.GET("/:id", notImplemented)
+	templates.PUT("/:id", notImplemented)
+	templates.DELETE("/:id", notImplemented)
+}
+
+func notImplemented(c *gin.Context) {
+	c.JSON(http.StatusNotImplemented, APIResponse{
+		Success: false,
+		Error:   "not implemented",
+	})
+}