ULTIMATE FIX: Switch to Blocks + HF Spaces detection

- Replace gr.Interface with gr.Blocks to avoid schema processing bugs
- Use direct image.change event instead of complex Interface schema
- Add SPACE_ID environment detection for proper HF Spaces handling
- Use server_name='0.0.0.0' for Spaces, share=True for local
- This should resolve both TypeError and localhost accessibility issues
- Reference: HF Forums discussion on Spaces launch problems

app.py

@@ -61,17 +61,26 @@ def predict_sign_language(image):
     except Exception as e:
         return f"❌ 處理錯誤: {str(e)}"
 
-# 使用最基本的Interface配置，完全避免複雜參數
-demo = gr.Interface(
-    fn=predict_sign_language,
-    inputs="image",  # 使用字串而不是元件物件
-    outputs="text",   # 使用字串而不是元件物件
-    title="🤟 SignView2.0 - 手語辨識系統",
-    description="支援34種手語詞彙的即時辨識系統，準確率達94.25%\n\n上傳影像即可開始辨識手語動作"
-)
+# 創建最基本的Blocks介面來避開Interface的schema問題
+with gr.Blocks(title="SignView2.0 - 手語辨識系統") as demo:
+    gr.Markdown("# 🤟 SignView2.0 - 手語辨識系統")
+    gr.Markdown("支援34種手語詞彙的即時辨識系統，準確率達94.25%")
+    gr.Markdown("上傳影像即可開始辨識手語動作")
+    
+    with gr.Row():
+        image_input = gr.Image()
+        text_output = gr.Textbox(label="辨識結果", lines=10)
+    
+    image_input.change(predict_sign_language, inputs=image_input, outputs=text_output)
 
 if __name__ == "__main__":
     print("🎉 SignView2.0 手語辨識系統已啟動！")
     
-    # 使用最安全的launch配置
-    demo.launch() 
+    # 針對Hugging Face Spaces的特殊配置
+    import os
+    if os.environ.get("SPACE_ID"):
+        # 在Hugging Face Spaces上運行
+        demo.launch(server_name="0.0.0.0", server_port=7860)
+    else:
+        # 本地運行
+        demo.launch(share=True)