1. Add 登陆功能

2. 调整字体大小
3. 新增部分功能

tests/test_reranker_bootstrap.py

@@ -0,0 +1,39 @@
+"""Verify that bootstrap correctly wires the reranker when the setting is enabled."""
+
+from unittest.mock import patch
+
+import pytest
+
+
+def test_get_reranker_returns_none_when_disabled():
+    """get_reranker() must return None when reranker_enabled is False."""
+    with patch("app.shared.bootstrap._build_binary_store"), \
+         patch("app.shared.bootstrap._build_vector_index"):
+        from app.shared import bootstrap
+        bootstrap.get_reranker.cache_clear()
+
+        with patch("app.shared.bootstrap.settings") as mock_settings:
+            mock_settings.reranker_enabled = False
+            mock_settings.reranker_base_url = ""
+            result = bootstrap.get_reranker()
+
+        bootstrap.get_reranker.cache_clear()
+        assert result is None
+
+
+def test_get_reranker_returns_instance_when_enabled():
+    """get_reranker() must return an OpenAICompatibleReranker when enabled."""
+    from app.shared import bootstrap
+    bootstrap.get_reranker.cache_clear()
+
+    with patch("app.shared.bootstrap.settings") as mock_settings:
+        mock_settings.reranker_enabled = True
+        mock_settings.reranker_base_url = "http://localhost:8082"
+        mock_settings.reranker_model = "BAAI/bge-reranker-v2-m3"
+        mock_settings.reranker_api_key = ""
+        mock_settings.reranker_top_k = 5
+        result = bootstrap.get_reranker()
+
+    bootstrap.get_reranker.cache_clear()
+    from app.infrastructure.vectorstore.cross_encoder_reranker import OpenAICompatibleReranker
+    assert isinstance(result, OpenAICompatibleReranker)