Implement comprehensive LLM provider system with global cost protection

- Add multi-provider LLM architecture supporting OpenRouter, OpenAI, Gemini, and custom providers
- Implement global LLM on/off switch with default DISABLED state for cost protection
- Add per-character LLM configuration with provider-specific models and settings
- Create performance-optimized caching system for LLM enabled status checks
- Add API key validation before enabling LLM providers to prevent broken configurations
- Implement audit logging for all LLM enable/disable actions for cost accountability
- Create comprehensive admin UI with prominent cost warnings and confirmation dialogs
- Add visual indicators in character list for custom AI model configurations
- Build character-specific LLM client system with global fallback mechanism
- Add database schema support for per-character LLM settings
- Implement graceful fallback responses when LLM is globally disabled
- Create provider testing and validation system for reliable connections

test_llm_current_provider.py

@@ -0,0 +1,75 @@
+#!/usr/bin/env python3
+"""
+Quick test to check if current provider is properly detected
+"""
+
+import asyncio
+import sys
+import os
+
+# Add src to path
+sys.path.insert(0, "src")
+
+async def test_current_provider():
+    """Test that current provider is properly detected"""
+    try:
+        # Set minimal env vars to avoid validation errors
+        import os
+        os.environ.setdefault('DISCORD_TOKEN', 'test')
+        os.environ.setdefault('DISCORD_GUILD_ID', '123')
+        os.environ.setdefault('DISCORD_CHANNEL_ID', '456')
+        
+        from llm.multi_provider_client import MultiProviderLLMClient
+        from utils.config import get_settings
+        
+        print("Testing current LLM provider detection...")
+        print("=" * 50)
+        
+        # Check current settings
+        settings = get_settings()
+        print(f"Current LLM config:")
+        print(f"  Base URL: {settings.llm.base_url}")
+        print(f"  Model: {settings.llm.model}")
+        print(f"  Providers configured: {len(settings.llm.providers) if settings.llm.providers else 0}")
+        
+        # Initialize client
+        client = MultiProviderLLMClient()
+        await client.initialize()
+        
+        # Check provider info
+        provider_info = client.get_provider_info()
+        current_provider = client.get_current_provider()
+        health_status = await client.health_check()
+        
+        print(f"\nProvider Status:")
+        print(f"  Current provider: {current_provider}")
+        print(f"  Total providers: {len(provider_info)}")
+        
+        for name, info in provider_info.items():
+            healthy = health_status.get(name, False)
+            is_current = name == current_provider
+            print(f"\n  {name}:")
+            print(f"    Type: {info['type']}")
+            print(f"    Model: {info['current_model']}")
+            print(f"    Enabled: {info['enabled']}")
+            print(f"    Priority: {info['priority']}")
+            print(f"    Healthy: {healthy}")
+            print(f"    Current: {is_current}")
+        
+        if current_provider:
+            print(f"\n✅ Current provider detected: {current_provider}")
+        else:
+            print(f"\n❌ No current provider detected!")
+            
+        return current_provider is not None
+        
+    except Exception as e:
+        print(f"\n❌ Error: {e}")
+        import traceback
+        traceback.print_exc()
+        return False
+
+if __name__ == "__main__":
+    success = asyncio.run(test_current_provider())
+    if not success:
+        sys.exit(1)