feat: add core contracts

packages/core/src/enums.test.ts

@@ -0,0 +1,22 @@
+import { describe, expect, it } from "vitest";
+
+import {
+  ApprovalDecisionActionValues,
+  BackendValues,
+  CapabilityValues,
+  RiskLevelValues,
+} from "./enums.js";
+
+describe("core enums", () => {
+  it("keeps approval decisions separate from run pause controls", () => {
+    expect(ApprovalDecisionActionValues).toEqual(["approve", "reject", "request_changes", "abort"]);
+    expect(ApprovalDecisionActionValues).not.toContain("pause");
+  });
+
+  it("exports the locked backend, risk, and capability sets", () => {
+    expect(BackendValues).toEqual(["codex", "claude", "fake"]);
+    expect(RiskLevelValues).toEqual(["low", "medium", "high"]);
+    expect(CapabilityValues).toContain("test_first_development");
+    expect(CapabilityValues).toContain("backtest_run");
+  });
+});