Add browser-based board CLI auth flow

Co-Authored-By: Paperclip <noreply@paperclip.ing>

cli/src/__tests__/board-auth.test.ts

@@ -0,0 +1,53 @@
+import fs from "node:fs";
+import os from "node:os";
+import path from "node:path";
+import { describe, expect, it } from "vitest";
+import {
+  getStoredBoardCredential,
+  readBoardAuthStore,
+  removeStoredBoardCredential,
+  setStoredBoardCredential,
+} from "../client/board-auth.js";
+
+function createTempAuthPath(): string {
+  const dir = fs.mkdtempSync(path.join(os.tmpdir(), "paperclip-cli-auth-"));
+  return path.join(dir, "auth.json");
+}
+
+describe("board auth store", () => {
+  it("returns an empty store when the file does not exist", () => {
+    const authPath = createTempAuthPath();
+    expect(readBoardAuthStore(authPath)).toEqual({
+      version: 1,
+      credentials: {},
+    });
+  });
+
+  it("stores and retrieves credentials by normalized api base", () => {
+    const authPath = createTempAuthPath();
+    setStoredBoardCredential({
+      apiBase: "http://localhost:3100/",
+      token: "token-123",
+      userId: "user-1",
+      storePath: authPath,
+    });
+
+    expect(getStoredBoardCredential("http://localhost:3100", authPath)).toMatchObject({
+      apiBase: "http://localhost:3100",
+      token: "token-123",
+      userId: "user-1",
+    });
+  });
+
+  it("removes stored credentials", () => {
+    const authPath = createTempAuthPath();
+    setStoredBoardCredential({
+      apiBase: "http://localhost:3100",
+      token: "token-123",
+      storePath: authPath,
+    });
+
+    expect(removeStoredBoardCredential("http://localhost:3100", authPath)).toBe(true);
+    expect(getStoredBoardCredential("http://localhost:3100", authPath)).toBeNull();
+  });
+});

cli/src/__tests__/http.test.ts

@@ -58,4 +58,26 @@ describe("PaperclipApiClient", () => {
       details: { issueId: "1" },
     } satisfies Partial<ApiRequestError>);
   });
+
+  it("retries once after interactive auth recovery", async () => {
+    const fetchMock = vi
+      .fn()
+      .mockResolvedValueOnce(new Response(JSON.stringify({ error: "Board access required" }), { status: 403 }))
+      .mockResolvedValueOnce(new Response(JSON.stringify({ ok: true }), { status: 200 }));
+    vi.stubGlobal("fetch", fetchMock);
+
+    const recoverAuth = vi.fn().mockResolvedValue("board-token-123");
+    const client = new PaperclipApiClient({
+      apiBase: "http://localhost:3100",
+      recoverAuth,
+    });
+
+    const result = await client.post<{ ok: boolean }>("/api/test", { hello: "world" });
+
+    expect(result).toEqual({ ok: true });
+    expect(recoverAuth).toHaveBeenCalledOnce();
+    expect(fetchMock).toHaveBeenCalledTimes(2);
+    const retryHeaders = fetchMock.mock.calls[1]?.[1]?.headers as Record<string, string>;
+    expect(retryHeaders.authorization).toBe("Bearer board-token-123");
+  });
 });