Update app.py

app.py

@@ -96,7 +96,7 @@ def json_to_lesson_plan_markdown(data: Dict[str, Any]) -> str:
 
 # 全域變數：模型與 API URL
 LLM_MODEL = "gemini-2.5-flash-preview-09-2025"
-API_URL = f"https://generativelace.googleapis.com/v1beta/models/{LLM_MODEL}:generateContent"
+API_URL = f"https://generativelanguage.googleapis.com/v1beta/models/{LLM_MODEL}:generateContent"
 
 def call_gemini_api(payload: Dict[str, Any]) -> str:
     """
@@ -108,7 +108,7 @@ def call_gemini_api(payload: Dict[str, Any]) -> str:
         return json.dumps({
             "error": "找不到 GEMINI_API_KEY",
             "message": "請設定 GEMINI_API_KEY 環境變數才能使用 API。"
-        })
+        }, ensure_ascii=False)
 
     # 2. 配置請求標頭和參數
     headers = {"Content-Type": "application/json"}
@@ -129,18 +129,20 @@ def call_gemini_api(payload: Dict[str, Any]) -> str:
             return json.dumps({
                 "error": f"API 錯誤: {response.status_code}",
                 "message": response.text
-            })
+            }, ensure_ascii=False)
             
     except requests.exceptions.RequestException as e:
         return json.dumps({
             "error": "連線錯誤",
             "message": str(e)
-        })
+        }, ensure_ascii=False)
     except (KeyError, IndexError, TypeError) as e:
+        # 捕捉解析回應時的潛在錯誤
+        raw_response_text = response.text if 'response' in locals() else 'N/A'
         return json.dumps({
             "error": "未預期的 API 回應",
-            "message": f"無法解析回應: {e}. 收到的回應: {response.text}"
-        })
+            "message": f"無法解析回應: {e}. 收到的回應: {raw_response_text}"
+        }, ensure_ascii=False)
 
 # --- 模組 A: 行政 Copilot 生成器 (Gradio 封裝) ---
 # (已修改為使用 call_gemini_api)
@@ -239,7 +241,7 @@ def lesson_plan_designer(grade: str, subject: str, topic: str, hours: float, met
     }
 
     user_query = (
-        f"請根據以下資訊設計一個單元教案、評量規準和差異化建議：\n"
+        f"請根據以下資訊設計一個單元教案、評量規數與差異化建議：\n"
         f"年級/學科/單元主題: {grade}/{subject}/{topic}\n"
         f"課時數: {int(hours)} 節\n"
         f"教學法偏好: {method}\n"
@@ -256,7 +258,7 @@ def lesson_plan_designer(grade: str, subject: str, topic: str, hours: float, met
         }
     }
 
-    # 呼叫真實 API
+    # Llamar a la API real
     json_string = call_gemini_api(payload)
 
     try: