multi tenancy part 1

backend/src/routes/mod.rs

@@ -50,6 +50,7 @@ pub fn create_router(state: AppState) -> Router<()> {
         .route("/login", post(auth::login))
         .route("/refresh", post(auth::refresh))
         .route("/logout", post(auth::logout))
+        .route("/select-tenant", post(auth::select_tenant))
         .route("/me", get(auth::me));
 
     let documents_routes = Router::new()