feat(insta-lab): 발행 상태 컬럼 + set_slate_decision/list_recent_issued_topics

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

insta-lab/tests/test_db_decision.py

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+import os
+import pytest
+from app import db, config
+
+
+@pytest.fixture
+def fresh_db(tmp_path, monkeypatch):
+    monkeypatch.setattr(config, "DB_PATH", str(tmp_path / "insta.db"))
+    monkeypatch.setattr(db, "DB_PATH", str(tmp_path / "insta.db"))
+    db.init_db()
+
+
+def test_set_slate_decision_approved_publishes(fresh_db):
+    sid = db.add_card_slate({"keyword": "금리", "category": "economy"})
+    db.set_slate_decision(sid, "approved")
+    s = db.get_card_slate(sid)
+    assert s["status"] == "published"
+    assert s["published_at"] is not None
+    assert s["decision_at"] is not None
+
+
+def test_set_slate_decision_rejected(fresh_db):
+    sid = db.add_card_slate({"keyword": "환율", "category": "economy"})
+    db.set_slate_decision(sid, "rejected")
+    s = db.get_card_slate(sid)
+    assert s["status"] == "rejected"
+    assert s["decision_at"] is not None
+    assert s["published_at"] is None
+
+
+def test_set_slate_decision_idempotent(fresh_db):
+    sid = db.add_card_slate({"keyword": "주식", "category": "economy"})
+    db.set_slate_decision(sid, "approved")
+    first = db.get_card_slate(sid)["published_at"]
+    db.set_slate_decision(sid, "approved")
+    assert db.get_card_slate(sid)["published_at"] == first
+
+
+def test_list_recent_issued_topics(fresh_db):
+    a = db.add_card_slate({"keyword": "금리", "category": "economy"})
+    b = db.add_card_slate({"keyword": "우울증", "category": "psychology"})
+    db.set_slate_decision(a, "approved")
+    db.set_slate_decision(b, "rejected")
+    topics = db.list_recent_issued_topics(window_days=14)
+    pairs = {(t["keyword"], t["category"]) for t in topics}
+    assert ("금리", "economy") in pairs
+    assert ("우울증", "psychology") in pairs