Add Flags Assets and Update Configuration

- Introduced multiple SVG flag assets to the project, enhancing the visual representation of country flags.
- Updated the configuration file to include a new path for the flags assets, ensuring proper access and organization.
- Modified the main application to accommodate the new flags path, improving the overall asset management in the application.

internal/assets/handler.go

@@ -0,0 +1,65 @@
+package assets
+
+import (
+	"net/http"
+
+	"tm/pkg/logger"
+
+	"github.com/labstack/echo/v4"
+)
+
+// Handler handles HTTP requests for flag operations
+type Handler struct {
+	service Service
+	logger  logger.Logger
+}
+
+// NewHandler creates a new flag handler
+func NewHandler(service Service, logger logger.Logger) *Handler {
+	return &Handler{
+		service: service,
+		logger:  logger,
+	}
+}
+
+// **************************** PUBLIC ENDPOINTS ****************************
+// GetFlagSVG returns only the SVG content of a flag
+// @Summary Get flag SVG
+// @Description Retrieve only the SVG content of a country flag by its 3-letter country code
+// @Tags Flags
+// @Accept json
+// @Produce image/svg+xml
+// @Param country_code path string true "3-letter country code (e.g., POL, GRC)"
+// @Success 200 {string} string "SVG content"
+// @Router /api/v1//{country_code} [get]
+func (h *Handler) GetFlagSVG(c echo.Context) error {
+	countryCode := c.Param("country_code")
+
+	svgData := h.service.GetFlagSVG(c.Request().Context(), countryCode)
+
+	c.Response().Header().Set("Content-Type", "image/svg+xml")
+	c.Response().Header().Set("Cache-Control", "public, max-age=86400") // Cache for 24 hours
+	return c.String(http.StatusOK, svgData)
+}
+
+// **************************** ADMIN ENDPOINTS ****************************
+
+// AdminGetFlag returns a flag by country code (Admin)
+// @Summary Get flag by country code (Admin)
+// @Description Retrieve a country flag by its 3-letter country code for admin panel
+// @Tags Admin Flags
+// @Accept json
+// @Produce json
+// @Param country_code path string true "3-letter country code (e.g., POL, GRC)"
+// @Success 200 {string} string "SVG content"
+// @Security BearerAuth
+// @Router /admin/v1/flags/{country_code} [get]
+func (h *Handler) AdminGetFlagSVG(c echo.Context) error {
+	countryCode := c.Param("country_code")
+
+	svgData := h.service.GetFlagSVG(c.Request().Context(), countryCode)
+
+	c.Response().Header().Set("Content-Type", "image/svg+xml")
+	c.Response().Header().Set("Cache-Control", "public, max-age=86400") // Cache for 24 hours
+	return c.String(http.StatusOK, svgData)
+}