feature/dwn sw js (#1103)

- **feat(macaroon): add  and  to macaroon genesis**
- **refactor: move schema definitions to dedicated file**
- **feat: remove Session model**
- **refactor: move session middleware to internal package**

internal/session/middleware.go

@@ -0,0 +1,35 @@
+package session
+
+import (
+	"github.com/labstack/echo/v4"
+	"github.com/segmentio/ksuid"
+
+	"github.com/onsonr/sonr/internal/headers"
+)
+
+// GetSession returns the current Session
+func GetSession(c echo.Context) *Session {
+	return c.(*Session)
+}
+
+// UseSession establishes a Session Cookie.
+func UseSession(next echo.HandlerFunc) echo.HandlerFunc {
+	return func(c echo.Context) error {
+		sc := initSession(c)
+		headers := new(headers.RequestHeaders)
+		err := sc.Bind(headers)
+		if err != nil {
+			return err
+		}
+		return next(sc)
+	}
+}
+
+func initSession(c echo.Context) *Session {
+	s := &Session{Context: c}
+	if val := ReadCookie(c, "session"); val == "" {
+		id := ksuid.New().String()
+		WriteCookie(c, "session", id)
+	}
+	return s
+}