feat: scaffold codespace backend

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

cmd/server/main.go

@@ -0,0 +1,64 @@
+package main
+
+import (
+	"context"
+	"log"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"codespace/internal/api"
+	"codespace/internal/process"
+	"codespace/internal/service"
+	"codespace/internal/workspace"
+	"codespace/pkg/config"
+	"codespace/pkg/logger"
+)
+
+func main() {
+	cfg, err := config.Load("configs/config.yaml")
+	if err != nil {
+		log.Fatalf("failed to load config: %v", err)
+	}
+
+	lg := logger.New()
+
+	workspaces := workspace.NewLocalManager(cfg.Workspace.Root)
+	processes := process.NewManager(cfg.Process.OpenCodeCommand)
+
+	workspaceSvc := service.NewWorkspaceService(workspaces, processes)
+	fileSvc := service.NewFileService(workspaces)
+	processSvc := service.NewProcessService(workspaces, processes)
+
+	router := api.NewRouter(workspaceSvc, fileSvc, processSvc)
+
+	server := &http.Server{
+		Addr:           cfg.Server.Addr,
+		Handler:        router,
+		ReadTimeout:    cfg.Server.ReadTimeout,
+		WriteTimeout:   cfg.Server.WriteTimeout,
+		IdleTimeout:    cfg.Server.IdleTimeout,
+		MaxHeaderBytes: cfg.Server.MaxHeaderBytes,
+	}
+
+	lg.Printf("listening on %s, workspace root: %s", cfg.Server.Addr, cfg.Workspace.Root)
+
+	go func() {
+		if err := server.ListenAndServe(); err != nil && err != http.ErrServerClosed {
+			lg.Fatalf("server error: %v", err)
+		}
+	}()
+
+	quit := make(chan os.Signal, 1)
+	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
+	<-quit
+
+	lg.Printf("shutting down...")
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+	if err := server.Shutdown(ctx); err != nil {
+		lg.Fatalf("forced shutdown: %v", err)
+	}
+}