/**
 * GAIA DAG Harness — Smoke Tests (ADR-139 Addendum)
 *
 * Verifies the Co-Sight DAG architecture without live API calls ($0 cost).
 *
 * Test cases:
 *   1.  DAG parse — valid JSON → DagPlan with correct step structure
 *   2.  DAG parse — malformed JSON fallback → single-step plan
 *   3.  getReadySteps — step 0 ready (no deps), step 1 NOT ready (dep=0 not done)
 *   4.  getReadySteps — after step 0 completed, step 1 becomes ready
 *   5.  getReadySteps — parallel steps (0 and 1 both no deps → both ready)
 *   6.  Parallel execution — all ready steps fire concurrently (mock)
 *   7.  Blocked-step detection — step with blocked dep is NOT ready
 *   8.  Plan cap — more than 7 steps is capped to MAX_PLAN_STEPS=7
 *   9.  runGaiaDAG mock — full mock pipeline returns expected answer
 *   10. Finalizer extraction — FINAL_ANSWER in finalize response is extracted
 *
 * Refs: ADR-139, github.com/ZTE-AICloud/Co-Sight, #2156
 */
export {};
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