feat: AI 余额监控服务（平台/账号 CRUD、并发轮询、Telegram 阈值提醒）

tests/conftest.py

@@ -0,0 +1,33 @@
+import sys
+from pathlib import Path
+
+sys.path.insert(0, str(Path(__file__).resolve().parent.parent))
+
+import pytest
+
+
+@pytest.fixture
+def test_db(tmp_path, monkeypatch):
+    """把数据库指向临时目录，避免污染真实 data/monitor.db。"""
+    from app import db
+
+    monkeypatch.setattr(db, "DB_PATH", tmp_path / "test.db")
+    monkeypatch.setattr(db, "DATA_DIR", tmp_path)
+    db.init_db()
+    return db
+
+
+@pytest.fixture
+def sample_platform(test_db):
+    """插入一个示例平台，返回 dict。"""
+    from app import db
+
+    with db.get_conn() as conn:
+        cur = conn.execute(
+            """INSERT INTO platforms (name, currency, icon, method, url, headers, body,
+               balance_path, interval_seconds, retry_count, timeout_seconds, enabled, note)
+               VALUES ('OpenAI', 'USD', 'OpenAI', 'GET', 'https://x.test/api?key={{apiKey}}',
+               '{"Authorization": "Bearer {{apiKey}}"}', '', 'data.balance', 60, 2, 10, 1, '')"""
+        )
+        pid = cur.lastrowid
+    return dict((test_db.get_conn().execute("SELECT * FROM platforms WHERE id=?", (pid,)).fetchone()))