feat: bootstrap temporserv project scaffold

Add the initial project blueprint, Go backend skeleton, frontend app shell, database schema draft, and local development/deployment files.

cmd/server/main.go

@@ -0,0 +1,44 @@
+package main
+
+import (
+	"context"
+	"log"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"github.com/benya/temporserv/internal/config"
+	"github.com/benya/temporserv/internal/httpapi"
+)
+
+func main() {
+	cfg := config.Load()
+	handler := httpapi.NewRouter(cfg)
+
+	server := &http.Server{
+		Addr:              cfg.Address(),
+		Handler:           handler,
+		ReadHeaderTimeout: 10 * time.Second,
+	}
+
+	go func() {
+		log.Printf("temporserv listening on %s", cfg.Address())
+		if err := server.ListenAndServe(); err != nil && err != http.ErrServerClosed {
+			log.Fatalf("server failed: %v", err)
+		}
+	}()
+
+	stop := make(chan os.Signal, 1)
+	signal.Notify(stop, os.Interrupt, syscall.SIGTERM)
+	<-stop
+
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+
+	if err := server.Shutdown(ctx); err != nil {
+		log.Printf("shutdown error: %v", err)
+	}
+}
+