Add .env.example template file

Author: BH3GEI

examples/mofa/agent-hub/openra-copilot-agent/.env.example

@@ -0,0 +1,14 @@
+# OpenAI API Configuration
+OPENAI_API_KEY=your_openai_api_key_here
+OPENAI_BASE_URL=https://api.openai.com/v1
+OPENAI_MODEL=gpt-4o
+
+# Alternative LLM Configuration (if using other providers)
+# LLM_API_KEY=your_api_key_here
+# LLM_API_BASE=https://api.anthropic.com/v1
+# LLM_MODEL=claude-3-haiku-20240307
+
+# Game Configuration
+OPENRA_PATH=/path/to/your/openra_ai
+GAME_HOST=localhost
+GAME_PORT=7445