feat(app): add cancellable turn lifecycle

src/app/errors.spec.ts

@@ -0,0 +1,56 @@
+import { describe, expect, it } from "vitest";
+
+import {
+  describeConnectionDiagnostic,
+  describeConnectionFailure,
+  describeOperationFailure,
+  describeTurnFailure
+} from "./errors";
+
+describe("player-safe failure copy", () => {
+  it("offers an immediate retry only for retryable turn failures", () => {
+    const retryable = describeTurnFailure({
+      code: "provider_unavailable",
+      message: "upstream secret diagnostic",
+      retryable: true
+    });
+    const invalid = describeTurnFailure({
+      code: "invalid_input",
+      message: "private validation detail",
+      retryable: false
+    });
+
+    expect(retryable.retryable).toBe(true);
+    expect(retryable.noCommitMessage).toContain("没有写入故事");
+    expect(invalid.retryable).toBe(false);
+  });
+
+  it("does not echo provider or hidden-check diagnostics", () => {
+    const privateDetail = "roll=97 target=42 api_key=do-not-show";
+    const turn = describeTurnFailure({
+      code: "invalid_model_output",
+      message: privateDetail,
+      retryable: true
+    });
+
+    expect(JSON.stringify(turn)).not.toContain(privateDetail);
+    expect(describeOperationFailure({ message: privateDetail })).not.toContain(privateDetail);
+    expect(describeConnectionFailure({ message: privateDetail })).not.toContain(privateDetail);
+    expect(describeConnectionDiagnostic("VAULT_CREDENTIAL_NOT_FOUND")).not.toContain(privateDetail);
+  });
+
+  it("does not suggest blindly retrying a stale branch", () => {
+    const failure = describeTurnFailure({
+      code: "stale_node",
+      retryable: true
+    });
+
+    expect(failure.retryable).toBe(false);
+    expect(failure.message).toContain("重新打开");
+  });
+
+  it("uses connection diagnostic codes without displaying provider text", () => {
+    expect(describeConnectionDiagnostic("WAIT_TIMEOUT")).toContain("超时");
+    expect(describeConnectionDiagnostic("VAULT_CREDENTIAL_NOT_FOUND")).toContain("LAPP Vault");
+  });
+});