feat: add Nailong Fund advisor capabilities

tests/unit/core/test_cursor.py

@@ -0,0 +1,20 @@
+import pytest
+
+from app.core.cursor import MAX_CURSOR_VALUE, parse_cursor
+from app.core.errors import InvalidCursorError
+
+
+@pytest.mark.parametrize("raw", [None, "", "  "])
+def test_empty_cursor_means_first_page(raw: str | None) -> None:
+    assert parse_cursor(raw) is None
+
+
+@pytest.mark.parametrize("raw", ["1", str(MAX_CURSOR_VALUE)])
+def test_decimal_cursor_is_accepted(raw: str) -> None:
+    assert parse_cursor(raw) == int(raw)
+
+
+@pytest.mark.parametrize("raw", ["0", "-1", "+1", "1.0", "abc", "1" * 20])
+def test_invalid_cursor_is_rejected(raw: str) -> None:
+    with pytest.raises(InvalidCursorError):
+        parse_cursor(raw)

tests/unit/core/test_settings.py

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+from app.core.config import Settings
+
+
+def test_sales_institution_supports_unicode_escaped_environment_value() -> None:
+    settings = Settings.model_validate({
+        "jwt_issuer": "test-issuer",
+        "jwt_audience": "test-audience",
+        "mysql_dsn": "mysql+asyncmy://user:pass@localhost:3306/test",
+        "redis_url": "redis://localhost:6379/0",
+        "milvus_uri": "http://localhost:19530",
+        "neo4j_uri": "bolt://localhost:7687",
+        "product_suitability_sales_institution": "\\u5357\\u65b9\\u57fa\\u91d1",
+    })
+
+    assert settings.product_suitability_sales_institution == "南方基金"