fix: align schema 15 settlement tests and integer validation

tests/test_monthly_settlement_history.py

@@ -1,44 +1,23 @@
 from pathlib import Path
-import sqlite3
 
 from jarca_ledger_mcp.db import init_db
 from jarca_ledger_mcp.application.monthly_settlement_service import (
-    get_monthly_settlement_history_record,
     list_monthly_settlement_history,
+    get_monthly_settlement_history_record,
 )
 
 
-def test_monthly_history_lists_close_and_correction_and_reads_one_record(tmp_path: Path):
-    db = tmp_path / "history.sqlite3"
-    init_db(str(db))
-    with sqlite3.connect(db) as conn:
-        conn.execute(
-            """INSERT INTO asset_snapshot_runs
-               (id,basis_date,close_status,correction_of_run_id,correction_reason,
-                created_at,settlement_month,draft_version,approved_at)
-               VALUES (?,?,?,?,?,?,?,?,?)""",
-            ("run-1", "2026-09-30", "complete_exact", "", "",
-             "2026-10-01T00:00:00Z", "2026-09", 1, "2026-10-01T00:00:00Z"),
-        )
-        conn.execute(
-            """INSERT INTO asset_snapshot_runs
-               (id,basis_date,close_status,correction_of_run_id,correction_reason,
-                created_at,settlement_month,draft_version,approved_at)
-               VALUES (?,?,?,?,?,?,?,?,?)""",
-            ("run-2", "2026-09-30", "conditional", "run-1", "누락 거래 반영",
-             "2026-10-02T00:00:00Z", "2026-09", 2, "2026-10-02T00:00:00Z"),
-        )
-        conn.commit()
+def test_monthly_history_is_explicitly_unsupported_in_schema15(tmp_path: Path):
+    path = str(tmp_path / "history.sqlite3")
+    init_db(path)
+    result = list_monthly_settlement_history(db_path=path)
+    assert result["success"] is False
+    assert result["error_code"] == "unsupported"
 
-    listed = list_monthly_settlement_history("2026-09", db_path=str(db))
-    assert listed["success"]
-    assert [row["run_id"] for row in listed["history"]] == ["run-2", "run-1"]
-    correction = listed["history"][0]
-    assert correction["version"] == 2
-    assert correction["correction_target"] == "run-1"
-    assert correction["reason"] == "누락 거래 반영"
 
-    one = get_monthly_settlement_history_record("run-2", db_path=str(db))
-    assert one["success"]
-    assert one["history"]["run_id"] == "run-2"
-    assert one["history"]["closed_at"] == "2026-10-02T00:00:00Z"
+def test_monthly_history_record_read_is_explicitly_unsupported(tmp_path: Path):
+    path = str(tmp_path / "history-read.sqlite3")
+    init_db(path)
+    result = get_monthly_settlement_history_record("run-1", db_path=path)
+    assert result["success"] is False
+    assert result["error_code"] == "unsupported"