Refactor file structure

README.md

@@ -5,8 +5,8 @@ colorFrom: yellow
 colorTo: gray
 sdk: gradio
 sdk_version: 6.3.0
-app_file: frontend.py
+app_file: frontends/gradio/main.py
 pinned: false
 ---
 
-Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference
+Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference

frontend.py → frontends/gradio/main.py

@@ -8,6 +8,13 @@ import matplotlib.lines as mlines
 import numpy as np
 from sympy import sympify
 
+import sys
+from pathlib import Path
+root_dir = Path(__file__).resolve().parent.parent.parent
+backend_src = root_dir / "backend" / "src"
+if str(backend_src) not in sys.path:
+    sys.path.append(str(backend_src))
+
 from backend import (
     compute_plot_values, 
     generate_dataset,