feat: execute route and release recovery contracts

tests/unit/error-classification.test.js

@@ -9,7 +9,7 @@ import {
 
 describe("frontend failure classification", () => {
   it("defines all 26 stable error kinds with the seven contract fields", () => {
-    expect(Object.keys(ERROR_REGISTRY)).toHaveLength(26);
+    expect(Object.keys(ERROR_REGISTRY)).toHaveLength(31);
     for (const definition of Object.values(ERROR_REGISTRY)) {
       expect(definition).toEqual(
         expect.objectContaining({