Fix image generator to read API keys from environment

- Read OPENAI_API_KEY and HUGGINGFACE_API_KEY directly from env
- Support both HUGGINGFACE_API_KEY and HF_TOKEN
- Change error to warning (don't fail app startup)
- Add debug logging for image gen keys
- Image generation now optional if no keys provided

src/utils/image_generator.py

@@ -95,8 +95,9 @@ class ImageGenerator:
 
     def __init__(self):
         """Initialize image generator with available providers"""
-        self.openai_api_key = config.openai_api_key
-        self.hf_api_key = config.huggingface_api_key
+        # Read API keys directly from environment
+        self.openai_api_key = os.getenv("OPENAI_API_KEY")
+        self.hf_api_key = os.getenv("HUGGINGFACE_API_KEY") or os.getenv("HF_TOKEN")
 
         self.output_dir = Path("data/portraits")
         self.output_dir.mkdir(parents=True, exist_ok=True)
@@ -108,11 +109,15 @@ class ImageGenerator:
         self.has_openai = bool(self.openai_api_key)
         self.has_hf = bool(self.hf_api_key)
 
+        if self.openai_api_key:
+            print(f"✅ OpenAI key found for image generation (key: {self.openai_api_key[:10]}...)")
+        if self.hf_api_key:
+            print(f"✅ HuggingFace key found for image generation (key: {self.hf_api_key[:10]}...)")
+
         if not self.has_openai and not self.has_hf:
-            raise ValueError(
-                "No image generation API keys found. "
-                "Please add OPENAI_API_KEY or HUGGINGFACE_API_KEY to your .env file"
-            )
+            print("⚠️  Warning: No image generation API keys found")
+            print("   Image generation will not be available")
+            print("   Add OPENAI_API_KEY or HUGGINGFACE_API_KEY to HF Spaces Secrets")
 
     def generate_character_portrait(
         self,