fix: direct swaggerFiles.Handler with path stripping

internal/app/middleware/swagger.go

@@ -8,13 +8,24 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/gin-gonic/gin"
-	ginSwagger "github.com/swaggo/gin-swagger"
 	swaggerFiles "github.com/swaggo/files"
+	"github.com/gin-gonic/gin"
 )
 
 func SwaggerHandler() gin.HandlerFunc {
-	return ginSwagger.WrapHandler(swaggerFiles.Handler)
+	return func(c *gin.Context) {
+		rawPath := c.Request.URL.Path
+		relPath := strings.TrimPrefix(rawPath, "/swagger")
+		if relPath == "" || relPath == "/" {
+			c.Request.URL.Path = "/index.html"
+		} else {
+			c.Request.URL.Path = relPath
+		}
+
+		swaggerFiles.Handler.ServeHTTP(c.Writer, c.Request)
+
+		c.Request.URL.Path = rawPath
+	}
 }
 
 func SwaggerCSSBranding() gin.HandlerFunc {