Reorganized API + added db migrations

Read the README file for more informations

backend/api/users/me.go

@@ -0,0 +1,33 @@
+package users
+
+import (
+	"net/http"
+
+	"fr.latosa-escrima/api/core"
+	"github.com/golang-jwt/jwt/v5"
+)
+
+func HandleMe(w http.ResponseWriter, r *http.Request) {
+	token, ok := r.Context().Value("token").(*jwt.Token)
+	if !ok {
+		core.JSONError{
+			Status:  core.Error,
+			Message: "Couldn't retrieve your JWT.",
+		}.Respond(w, http.StatusInternalServerError)
+		return
+	}
+
+	claims, ok := token.Claims.(jwt.MapClaims)
+	if !ok {
+		core.JSONError{
+			Status:  core.Error,
+			Message: "Invalid token claims.",
+		}.Respond(w, http.StatusInternalServerError)
+		return
+	}
+
+	uuid := claims["user_id"].(string)
+
+	r.SetPathValue("user_uuid", uuid)
+	HandleUser(w, r)
+}