Update .env.example to include PYTHONPATH variable

- Added PYTHONPATH variable for easier module resolution.
- Ensured DEEPSEEK_BASE_URL remains consistent with previous configuration.

Author: TMHSDigital

.env.example

@@ -1,3 +1,4 @@
 # DeepSeek API credentials
 DEEPSEEK_API_KEY=your_api_key_here
-DEEPSEEK_BASE_URL=https://api.deepseek.com/v1
+DEEPSEEK_BASE_URL=https://api.deepseek.com/v1
+PYTHONPATH=path\path\path