feat(gtm): upgrade to google-genai, fix image gen & frontend crash

gtm_architect_orchestrator.py

@@ -14,7 +14,7 @@ import gtm_db_manager as db_manager
 
 sys.path.append(os.path.dirname(os.path.abspath(__file__)))
 
-from helpers import call_gemini_flash, scrape_website_details
+from helpers import call_gemini_flash, scrape_website_details, call_gemini_image
 from config import Config, BASE_DIR # Import Config and BASE_DIR
 
 LOG_DIR = "Log_from_docker"
@@ -401,21 +401,31 @@ def translate(payload):
     return {"report": "Translated report will be here."}
 
 def image(payload):
-    prompt = payload.get('prompt', 'No Prompt')[:50] + "..."
-    # Create a simple SVG placeholder to avoid frontend crash
-    svg = f"""
-    <svg width="512" height="512" xmlns="http://www.w3.org/2000/svg">
-      <rect width="100%" height="100%" fill="#eee"/>
-      <text x="50%" y="50%" font-family="Arial" font-size="20" fill="#555" text-anchor="middle" dy=".3em">
-        Image Generation Not Configured
-      </text>
-      <text x="50%" y="60%" font-family="Arial" font-size="12" fill="#888" text-anchor="middle" dy=".3em">
-        {prompt}
-      </text>
-    </svg>
-    """
-    svg_b64 = base64.b64encode(svg.encode('utf-8')).decode('utf-8')
-    return {"imageBase64": f"data:image/svg+xml;base64,{svg_b64}"}
+    prompt = payload.get('prompt', 'No Prompt')
+    project_id = payload.get('projectId')
+    
+    # Versuche, ein Referenzbild aus dem Payload zu holen (für Image-to-Image)
+    # Frontend sendet "referenceImagesBase64" (Array)
+    ref_images = payload.get('referenceImagesBase64')
+    ref_image = None
+    
+    if ref_images and isinstance(ref_images, list) and len(ref_images) > 0:
+        ref_image = ref_images[0]
+    elif payload.get('referenceImage'): # Fallback für alte Calls
+        ref_image = payload.get('referenceImage')
+    
+    log_and_save(project_id, "image", "prompt", prompt)
+    if ref_image:
+         logging.info(f"Image-Mode: Reference Image found (Length: {len(ref_image)})")
+    
+    try:
+        # Aufruf mit optionalem Referenzbild
+        image_b64 = call_gemini_image(prompt, reference_image_b64=ref_image)
+        log_and_save(project_id, "image", "response_b64_preview", image_b64[:100] + "...")
+        return {"imageBase64": f"data:image/png;base64,{image_b64}"}
+    except Exception as e:
+        logging.error(f"Failed to generate image: {e}", exc_info=True)
+        return {"error": "Image generation failed.", "details": str(e)}
 
 def main():
     """