release: bump version to 0.52.0

backend/tests/test_settings_ai_provider.py

@@ -5,9 +5,12 @@ import pytest
 from app.api.v1 import settings as settings_api
 from app.api.v1.settings import (
     AIProviderIntegrationUpdate,
+    OCRIntegrationUpdate,
     _build_ai_provider_payload,
+    _build_ocr_payload,
     _mask_secret,
     _normalize_ai_provider_payload,
+    _normalize_ocr_payload,
     _resolve_provider_api_key,
     get_runtime_ai_provider_config,
 )
@@ -130,6 +133,43 @@ def test_build_payload_keeps_saved_key_when_preview_submitted():
     assert payload["providers"]["openai"]["api_key"] == "sk-old-secret"
 
 
+def test_normalize_ocr_payload_adds_defaults():
+    payload = _normalize_ocr_payload({})
+
+    assert payload["enabled"] is False
+    assert payload["provider"] == "paddleocr"
+    assert payload["languages"] == ["zh", "en"]
+    assert payload["output_format"] == "markdown"
+
+
+def test_build_ocr_payload_keeps_saved_key_when_preview_submitted():
+    current = {
+        "ocr": {
+            "enabled": True,
+            "provider": "custom",
+            "base_url": "http://localhost:8020",
+            "api_key": "ocr-old-secret",
+        }
+    }
+    update = OCRIntegrationUpdate(
+        enabled=True,
+        provider="custom",
+        base_url="http://localhost:8020",
+        api_key="**************",
+        model="ocr-model",
+        languages=["zh", "en"],
+        timeout_seconds=45,
+        max_file_size_mb=50,
+        output_format="json",
+    )
+
+    payload = _build_ocr_payload(current, update)
+
+    assert payload["api_key"] == "ocr-old-secret"
+    assert payload["model"] == "ocr-model"
+    assert payload["output_format"] == "json"
+
+
 @pytest.mark.asyncio
 async def test_runtime_config_uses_default_provider_specific_key(monkeypatch):
     record = SimpleNamespace(