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

app/routes/pages.py

@@ -58,10 +58,13 @@ def day_page(date_str: str, request: Request, db: Session = Depends(get_db)):
         .limit(30)
         .all()
     )
-    available_dates = [d[0].isoformat() if isinstance(d[0], date) else str(d[0]) for d in dates_raw]
+    available_dates = [
+        d[0].isoformat() if isinstance(d[0], date) else str(d[0]) for d in dates_raw
+    ]
 
     return templates.TemplateResponse(
-        request, "index.html",
+        request,
+        "index.html",
         {
             "papers": papers,
             "current_date": date_str,
@@ -105,7 +108,8 @@ def paper_detail(arxiv_id: str, request: Request, db: Session = Depends(get_db))
     images = _get_paper_images(arxiv_id)
 
     return templates.TemplateResponse(
-        request, "detail.html",
+        request,
+        "detail.html",
         {
             "paper": paper,
             "summary_state": summary_state,
@@ -166,7 +170,11 @@ def _get_similar_papers(db: Session, arxiv_id: str, top_k: int = 6) -> list[dict
 
         # 从 DB 加载论文信息
         similar_ids = results["ids"][0]
-        distances = results["distances"][0] if results["distances"] else [0.0] * len(similar_ids)
+        distances = (
+            results["distances"][0]
+            if results["distances"]
+            else [0.0] * len(similar_ids)
+        )
 
         # 排除自身
         papers_info = {}
@@ -186,13 +194,15 @@ def _get_similar_papers(db: Session, arxiv_id: str, top_k: int = 6) -> list[dict
 
         items = []
         for p in papers:
-            items.append({
-                "arxiv_id": p.arxiv_id,
-                "title_zh": p.title_zh or p.title_en,
-                "distance": papers_info.get(p.arxiv_id, 0.0),
-                "paper_date": p.paper_date.isoformat() if p.paper_date else "",
-                "tags": [t.tag for t in p.tags[:3]],
-            })
+            items.append(
+                {
+                    "arxiv_id": p.arxiv_id,
+                    "title_zh": p.title_zh or p.title_en,
+                    "distance": papers_info.get(p.arxiv_id, 0.0),
+                    "paper_date": p.paper_date.isoformat() if p.paper_date else "",
+                    "tags": [t.tag for t in p.tags[:3]],
+                }
+            )
 
         # 按距离排序
         items.sort(key=lambda x: x["distance"])
@@ -215,8 +225,10 @@ def _get_paper_images(arxiv_id: str) -> list[dict]:
     images = []
     for img_file in sorted(images_dir.iterdir()):
         if img_file.suffix.lower() in (".png", ".jpg", ".jpeg", ".gif", ".svg"):
-            images.append({
-                "url": f"/papers/{arxiv_id}/images/{img_file.name}",
-                "name": img_file.name,
-            })
+            images.append(
+                {
+                    "url": f"/papers/{arxiv_id}/images/{img_file.name}",
+                    "name": img_file.name,
+                }
+            )
     return images