feat: overhaul UI styling, improve templates, enhance services and tests

tests/test_embedder.py

@@ -21,6 +21,7 @@ class TestEmbedderInit:
         """CHROMA_ENABLED=false 时不初始化。"""
         monkeypatch.setattr(settings, "CHROMA_ENABLED", False)
         import app.services.embedder as emb
+
         emb._chroma.reset()
         emb.init_chroma()
         assert emb._chroma._client is None
@@ -31,6 +32,7 @@ class TestEmbedderInit:
         monkeypatch.setattr(settings, "CHROMA_DIR", str(tmp_path / "chroma"))
 
         import app.services.embedder as emb
+
         emb._chroma.reset()
         emb.init_chroma()
 
@@ -44,6 +46,7 @@ class TestEmbedderInit:
         """CHROMA_ENABLED=false 时 get_collection 返回 None。"""
         monkeypatch.setattr(settings, "CHROMA_ENABLED", False)
         import app.services.embedder as emb
+
         emb._chroma.reset()
         assert emb.get_collection() is None
 
@@ -60,6 +63,7 @@ class TestEmbedderIndexing:
         """CHROMA_ENABLED=false 时 index_paper 返回 False。"""
         monkeypatch.setattr(settings, "CHROMA_ENABLED", False)
         import app.services.embedder as emb
+
         emb._chroma.reset()
         assert emb.index_paper("test-id") is False
 
@@ -71,6 +75,7 @@ class TestEmbedderIndexing:
         monkeypatch.setattr(settings, "EMBED_MODEL", "")
 
         import app.services.embedder as emb
+
         emb._chroma.reset()
         emb.init_chroma()
 
@@ -83,6 +88,7 @@ class TestEmbedderIndexing:
         """CHROMA_ENABLED=false 时 index_batch 返回全失败。"""
         monkeypatch.setattr(settings, "CHROMA_ENABLED", False)
         import app.services.embedder as emb
+
         emb._chroma.reset()
         result = emb.index_batch(["a", "b"])
         assert result["success"] == 0
@@ -92,6 +98,7 @@ class TestEmbedderIndexing:
         """空列表时返回 0。"""
         monkeypatch.setattr(settings, "CHROMA_ENABLED", False)
         import app.services.embedder as emb
+
         result = emb.index_batch([])
         assert result["total"] == 0
 
@@ -99,6 +106,7 @@ class TestEmbedderIndexing:
         """CHROMA_ENABLED=false 时 delete_paper 返回 False。"""
         monkeypatch.setattr(settings, "CHROMA_ENABLED", False)
         import app.services.embedder as emb
+
         emb._chroma.reset()
         assert emb.delete_paper("test-id") is False
 
@@ -106,6 +114,7 @@ class TestEmbedderIndexing:
         """CHROMA_ENABLED=false 时 search_similar 返回空列表。"""
         monkeypatch.setattr(settings, "CHROMA_ENABLED", False)
         import app.services.embedder as emb
+
         emb._chroma.reset()
         assert emb.search_similar("test query") == []
 
@@ -123,6 +132,7 @@ class TestEmbeddingApi:
         monkeypatch.setattr(settings, "EMBED_API_BASE", "")
         monkeypatch.setattr(settings, "EMBED_MODEL", "")
         import app.services.embedder as emb
+
         assert emb._get_embedding("test") is None
 
     def test_dimension_mismatch_returns_none(self, monkeypatch):
@@ -158,6 +168,8 @@ class TestEmbeddingApi:
         with patch("httpx.Client") as mock_client:
             mock_client.return_value.__enter__ = MagicMock()
             mock_client.return_value.__exit__ = MagicMock(return_value=False)
-            mock_client.return_value.__enter__.return_value.post.side_effect = Exception("timeout")
+            mock_client.return_value.__enter__.return_value.post.side_effect = (
+                Exception("timeout")
+            )
             result = emb._get_embedding("test")
             assert result is None