✅ test: aggiunti test update_quest + integrità avventura

- test_tools.py: 4 test per update_quest (normale, status invalido,
  quest non trovata, rinomina)
- test_adventure.py: integrità dati (9 aree, connessioni bidirezionali,
  mostri con statblock, quest, items, features)
- Tutti 54 test passano in 0.69s

tests/test_tools.py

@@ -123,6 +123,39 @@ def test_dm_override_help():
     assert "commands" in r
 
 
+def test_update_quest_tool():
+    camp_id, _ = _setup_char()
+    import src.engine.db as db
+    qid = db.add_quest(camp_id, "Missione Test", "Descrizione test")
+    r = run("update_quest", quest_id=qid, status="completed")
+    assert r["success"] is True
+    assert r["status"] == "completed"
+    assert "Missione Test" in r["message"]
+
+
+def test_update_quest_invalid_status():
+    camp_id, _ = _setup_char()
+    import src.engine.db as db
+    qid = db.add_quest(camp_id, "Missione", "")
+    r = run("update_quest", quest_id=qid, status="impossibile")
+    assert r["success"] is False
+
+
+def test_update_quest_not_found():
+    r = run("update_quest", quest_id=99999, status="completed")
+    assert r["success"] is False
+    assert "non trovata" in r["message"]
+
+
+def test_update_quest_with_name():
+    camp_id, _ = _setup_char()
+    import src.engine.db as db
+    qid = db.add_quest(camp_id, "Vecchio Nome", "")
+    r = run("update_quest", quest_id=qid, status="active", name="Nuovo Nome")
+    assert r["success"] is True
+    assert "Nuovo Nome" in r["name"]
+
+
 def test_combat():
     _, char_id = _setup_char()
     r = run(