AI implementation for openai and claude.

.env.example

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+# AI Provider API Keys
+# Get Claude API key from: https://console.anthropic.com/
+ANTHROPIC_API_KEY=your_anthropic_api_key_here
+
+# Get OpenAI API key from: https://platform.openai.com/api-keys
+OPENAI_API_KEY=your_openai_api_key_here
+
+# Provider Settings
+DEFAULT_PROVIDER=claude
+CLAUDE_MODEL=claude-3-5-sonnet-20241022
+OPENAI_MODEL=gpt-4-turbo-preview
+
+# API Configuration
+MAX_TOKENS=4000
+TEMPERATURE=0.7
+FRONTEND_URL=http://localhost:3000