Update app.py

app.py

@@ -17,6 +17,24 @@ extractor = SentenceExtractor(
 async def root():
     return {"message": "API is running. Use POST /evaluate to upload files."}
 
+@app.get("/health")
+async def health():
+    try:
+        # 暴露关键运行状态，便于部署环境自检
+        return JSONResponse(content={
+            "model_loaded": getattr(extractor, "model_loaded", False),
+            "model_path_abs": getattr(extractor, "model_path_abs", None),
+            "model_sha256": getattr(extractor, "model_sha256", None),
+            "providers": getattr(extractor, "providers", None),
+            "tokenizer_loaded": getattr(extractor, "tokenizer_loaded", None),
+            "last_tokenizer_error": getattr(extractor, "last_tokenizer_error", None),
+            "aggregation_mode": extractor.aggregation_mode,
+            "min_sentence_char_len": extractor.min_sentence_char_len,
+            "merge_leading_punct": extractor.merge_leading_punct,
+        })
+    except Exception as e:
+        return JSONResponse(content={"error": str(e)}, status_code=500)
+
 @app.post("/evaluate")
 async def evaluate_file(file: UploadFile = File(...)):
     try:
@@ -36,8 +54,16 @@ async def evaluate_file(file: UploadFile = File(...)):
             "句子评分": []
         }
         for i, item in enumerate(result["scored_sentences"], 1):
+            source = item.get('source', '?')
+            reason = item.get('reason') or item.get('last_tokenizer_error')
+            suffix = f" ({source})"
+            if source == 'rule' and reason:
+                # 将回退原因直接拼接到可见文本，便于客户端看到具体错误
+                if len(reason) > 120:
+                    reason = reason[:120] + '...'
+                suffix += f" - reason: {reason}"
             formatted_result["句子评分"].append({
-                f"句子{i}": f"{item['sentence']} - {item['grade']} ({item.get('source','?')})"
+                f"句子{i}": f"{item['sentence']} - {item['grade']}{suffix}"
             })
 
         # 附加调试信息便于客户端确认