File skill-e2e.test.ts

test/skill-e2e.test.ts:None–None

import { describe, test, expect, beforeAll, afterAll } from 'bun:test';
import { runSkillTest } from './helpers/session-runner';
import type { SkillTestResult } from './helpers/session-runner';
import { outcomeJudge, callJudge } from './helpers/llm-judge';