feat(insta-lab): Claude Haiku 카드가치 판단(graceful)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

insta-lab/tests/test_selection_judge.py

@@ -0,0 +1,20 @@
+from app import selection_judge
+
+
+def test_parse_judge_response_ok():
+    raw = '[{"keyword_id": 1, "score": 0.8}, {"keyword_id": 2, "score": 0.3}]'
+    assert selection_judge.parse_judge_response(raw) == {1: 0.8, 2: 0.3}
+
+
+def test_parse_judge_response_codefence():
+    raw = '```json\n[{"keyword_id": 5, "score": 0.5}]\n```'
+    assert selection_judge.parse_judge_response(raw) == {5: 0.5}
+
+
+def test_parse_judge_response_garbage_returns_empty():
+    assert selection_judge.parse_judge_response("not json") == {}
+
+
+def test_judge_candidates_no_key_returns_empty(monkeypatch):
+    monkeypatch.setattr(selection_judge, "ANTHROPIC_API_KEY", "")
+    assert selection_judge.judge_candidates([{"id": 1, "keyword": "x", "category": "economy"}]) == {}