fix(db): drop utcnow + atomic migrations + row factory test

engine/db/migrations.py

@@ -51,8 +51,11 @@ def migrate(conn: sqlite3.Connection) -> None:
             continue
         sql = sql_file.read_text(encoding="utf-8")
         with conn:
-            conn.executescript(sql)
+            for stmt in sql.split(";"):
+                stmt = stmt.strip()
+                if stmt:
+                    conn.execute(stmt)
             conn.execute(
                 "INSERT INTO migrations(version, applied_at) VALUES(?, ?);",
-                (version, _dt.datetime.utcnow().isoformat(timespec="seconds") + "Z"),
+                (version, _dt.datetime.now(_dt.UTC).strftime("%Y-%m-%dT%H:%M:%SZ")),
             )

tests/engine/db/test_connection.py

@@ -40,3 +40,20 @@ def test_get_connection_creates_parent_dir(tmp_path):
     conn = get_connection(target)
     assert target.parent.exists()
     conn.close()
+
+
+def test_get_connection_row_factory_supports_name_access(tmp_path):
+    conn = get_connection(tmp_path / "row.db")
+    conn.execute("CREATE TABLE t (val INTEGER);")
+    conn.execute("INSERT INTO t VALUES (42);")
+    row = conn.execute("SELECT val FROM t;").fetchone()
+    assert row["val"] == 42
+    conn.close()
+
+
+def test_resolve_db_path_falls_back_to_home(monkeypatch):
+    from pathlib import Path
+    monkeypatch.delenv("WP_DB_PATH", raising=False)
+    monkeypatch.delenv("COMFYUI_USER_DIR", raising=False)
+    result = resolve_db_path()
+    assert result == Path.home() / ".comfyui" / "wildcard-pipeline.db"