Add dashboard for authenticated users with JWT check and static files

backend/cmd/server/main.go

@@ -8,9 +8,12 @@ import (
 	"io"
 	"log"
 	"net/http"
+	"strings"
 
 	"github.com/go-playground/validator/v10"
 	jwtgo "github.com/golang-jwt/jwt"
+	"github.com/google/uuid"
+	"github.com/jackc/pgx/v5/pgtype"
 	"github.com/labstack/echo/v4"
 	"github.com/labstack/echo/v4/middleware"
 )
@@ -83,8 +86,36 @@ func main() {
 	// Routes
 	handlers.SetupRoutes(protected, queries)
 
+	// Static files
+	e.Static("/static", "static")
+
 	// Page routes
 	e.GET("/", func(c echo.Context) error {
+		// Check if user has valid JWT token
+		tokenString := c.Request().Header.Get("Authorization")
+		if tokenString != "" && strings.HasPrefix(tokenString, "Bearer ") {
+			tokenString = strings.TrimPrefix(tokenString, "Bearer ")
+			token, err := jwtgo.Parse(tokenString, func(token *jwtgo.Token) (interface{}, error) {
+				return []byte(cfg.JWTSecret), nil
+			})
+			if err == nil && token.Valid {
+				// User is authenticated, get user info and serve dashboard
+				claims := token.Claims.(jwtgo.MapClaims)
+				userID := claims["user_id"].(string)
+
+				user, err := queries.GetUser(c.Request().Context(), pgtype.UUID{Bytes: uuid.MustParse(userID), Valid: true})
+				if err == nil {
+					return c.Render(http.StatusOK, "dashboard.html", map[string]interface{}{
+						"User": map[string]string{
+							"ID":       uuid.UUID(user.ID.Bytes).String(),
+							"Username": user.Username,
+							"Email":    user.Email,
+						},
+					})
+				}
+			}
+		}
+		// User not authenticated or token invalid, serve landing page
 		return c.Render(http.StatusOK, "index.html", nil)
 	})
 	e.GET("/login", func(c echo.Context) error {