feat: add FastAPI manager API compatibility baseline

main/manager-api-fastapi/tests/test_schema_alias_compatibility.py

@@ -0,0 +1,37 @@
+from __future__ import annotations
+
+import warnings
+
+from fastapi._compat import get_model_fields
+
+from app.schemas.correctword import CorrectWordFileBody
+from app.schemas.device import DeviceReportRequest, DeviceUpdateRequest
+from app.schemas.model import ModelProviderBody
+
+
+def test_fastapi_can_rebuild_all_alias_fields_without_ineffective_metadata_warnings() -> None:
+    # FastAPI reconstructs each body model field through TypeAdapter on first
+    # request.  Keep this explicit regression because an unconstrained future
+    # Pydantic upgrade emitted warnings for every aliased field on that path.
+    with warnings.catch_warnings():
+        warnings.simplefilter("error")
+        for model in (DeviceUpdateRequest, ModelProviderBody, DeviceReportRequest, CorrectWordFileBody):
+            assert get_model_fields(model)
+
+
+def test_representative_java_aliases_bind_and_serialize_in_both_supported_input_forms() -> None:
+    update = DeviceUpdateRequest.model_validate({"autoUpdate": 1})
+    assert update.auto_update == 1
+    assert update.model_dump(by_alias=True)["autoUpdate"] == 1
+
+    provider = ModelProviderBody.model_validate({"modelType": "LLM", "providerCode": "mock"})
+    assert (provider.model_type, provider.provider_code) == ("LLM", "mock")
+
+    camel_report = DeviceReportRequest.model_validate({"flashSize": 8, "chipModelName": "esp32"})
+    snake_report = DeviceReportRequest.model_validate({"flash_size": 8, "chip_model_name": "esp32"})
+    assert camel_report.flash_size == snake_report.flash_size == 8
+    assert camel_report.chip_model_name == snake_report.chip_model_name == "esp32"
+
+    words = CorrectWordFileBody.model_validate({"fileName": "words.txt", "fileSize": 12})
+    assert words.file_name == "words.txt"
+    assert words.file_size == 12