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

app/services/cleaner.py

@@ -61,7 +61,9 @@ def cleanup_tmp(max_age_hours: int = _MAX_TMP_AGE_HOURS) -> dict:
             errors.append(err_msg)
             logger.warning("Failed to clean tmp dir %s: %s", entry.name, exc)
 
-    logger.info("Tmp cleanup: scanned=%d removed=%d errors=%d", scanned, removed, len(errors))
+    logger.info(
+        "Tmp cleanup: scanned=%d removed=%d errors=%d", scanned, removed, len(errors)
+    )
     return {"scanned": scanned, "removed": removed, "errors": errors}
 
 
@@ -109,7 +111,12 @@ async def delete_papers_by_date_range(
     )
 
     total = len(papers)
-    logger.info("Delete papers by date range: %s ~ %s, found %d papers", date_start, date_end, total)
+    logger.info(
+        "Delete papers by date range: %s ~ %s, found %d papers",
+        date_start,
+        date_end,
+        total,
+    )
 
     # 创建 delete job 记录
     job = DataDeleteJob(
@@ -139,9 +146,12 @@ async def delete_papers_by_date_range(
             # 1.5 Phase 5: 从 ChromaDB 删除语义索引
             try:
                 from app.services.embedder import delete_paper
+
                 delete_paper(arxiv_id)
             except Exception:
-                logger.warning("Failed to delete %s from ChromaDB", arxiv_id, exc_info=True)
+                logger.warning(
+                    "Failed to delete %s from ChromaDB", arxiv_id, exc_info=True
+                )
 
             # 2. 删除本地文件 data/papers/{arxiv_id}/
             paper_dir = PAPERS_DIR / arxiv_id
@@ -179,7 +189,9 @@ async def delete_papers_by_date_range(
     job_status = "success"
     if failed_items:
         job_status = "failed" if deleted == 0 else "success"
-        job_error = "; ".join(f"{f['arxiv_id']}: {f['error']}" for f in failed_items[:20])
+        job_error = "; ".join(
+            f"{f['arxiv_id']}: {f['error']}" for f in failed_items[:20]
+        )
 
     job.status = job_status
     job.paper_count = deleted
@@ -210,6 +222,10 @@ async def delete_papers_by_date_range(
     }
     logger.info(
         "Delete job completed: date_range=%s~%s total=%d deleted=%d failed=%d",
-        date_start, date_end, total, deleted, len(failed_items),
+        date_start,
+        date_end,
+        total,
+        deleted,
+        len(failed_items),
     )
     return result