cli-e2e-test-authoring

# CLI E2E Test Authoring ## Overview Add end-to-end tests that exercise the Packmind CLI binary (`dist/apps/cli/main.cjs`) in realistic conditions. Tests run the actual CLI as a child process and, when authentication is needed, interact with a running API via HTTP gateways. ## Test File Location All spec files live in `apps/cli-e2e-tests/src/` and follow the naming convention `<command>.spec.ts`. ## Choosing a Test Wrapper Two wrappers are available depending on whether the command requires authentication. ### Unauthenticated commands — `describeWithTempSpace` Provides an isolated temporary directory. No API required. ```typescript import { describeWithTempSpace, runCli } from './helpers'; describeWithTempSpace('my-command without auth', (getContext) => { let result: Awaited<ReturnType<typeof runCli>>; beforeEach(async () => { const { testDir } = await getContext(); result = await runCli('my-command', { cwd: testDir }); }); it('exits with code 1', () => { expect(result.returnCode).toBe(1); }); it('shows an error message', () => { expect(result.stdout).toContain('No credentials found'); }); }); ``` ### Authenticated commands — `describeWithUserSignedUp` Extends `describeWithTempSpace` by creating a real user account, signing in, and generating an API key. Requires a running API at `http://localhost:4200`. ```typescript import { describeWithUserSignedUp, runCli } from './helpers'; describeWithUserSignedUp('my-command with auth', (g...