fix: resolve onboarding session not found warnings and frontend build OOM

- Use canonical Clerk user id (clerk_user_id) across all onboarding entrypoints to ensure consistent OnboardingSession.user_id lookup
- Fix API key persistence in api_key_manager.py to use correct APIKey model columns (session_id, provider, key)
- Increase Node heap for frontend build to 8GB and add build:nomap script to disable sourcemaps and reduce memory usage
- Update onboarding endpoints (endpoints_core.py, onboarding_control_service.py, step_management_service.py) to prefer clerk_user_id over id
- Fix frontend workflowStore.ts TypeScript error by returning WorkflowError instance
- Add website_automation_service.py for onboarding automation

backend/models/user_website_request.py

@@ -0,0 +1,121 @@
+"""User Website Request models for ALwrity website maker functionality."""
+from typing import Optional, Dict, Any
+from pydantic import BaseModel, Field
+from datetime import datetime
+from enum import Enum
+
+
+class WebsiteStatus(str, Enum):
+    """Website creation status enum."""
+    INITIATED = "initiated"
+    PREVIEWING = "previewing"
+    DEPLOYING = "deploying"
+    DEPLOYED = "deployed"
+    FAILED = "failed"
+    CANCELLED = "cancelled"
+
+
+class TemplateType(str, Enum):
+    """Website template types."""
+    BLOG = "blog"
+    PROFILE = "profile"
+    SHOP = "shop"
+    DONT_KNOW = "dont_know"
+
+
+class UserWebsiteRequest(BaseModel):
+    """Request model for creating/updating user website."""
+    user_id: int = Field(..., description="User ID")
+    template_type: TemplateType = Field(default=TemplateType.BLOG, description="Website template type")
+    business_name: Optional[str] = Field(None, description="Business name")
+    business_description: Optional[str] = Field(None, description="Business description")
+    status: WebsiteStatus = Field(default=WebsiteStatus.INITIATED, description="Website status")
+    github_repo_url: Optional[str] = Field(None, description="GitHub repository URL")
+    netlify_site_url: Optional[str] = Field(None, description="Netlify deployed site URL")
+    netlify_admin_url: Optional[str] = Field(None, description="Netlify admin URL")
+    site_brief: Optional[Dict[str, Any]] = Field(None, description="Generated site brief")
+    theme_tokens: Optional[Dict[str, Any]] = Field(None, description="Theme configuration tokens")
+    custom_css: Optional[str] = Field(None, description="Custom CSS for theming")
+    preview_url: Optional[str] = Field(None, description="Preview site URL")
+    deployment_config: Optional[Dict[str, Any]] = Field(None, description="Deployment configuration")
+    error_message: Optional[str] = Field(None, description="Error message if failed")
+
+
+class UserWebsiteResponse(BaseModel):
+    """Response model for user website data."""
+    id: int
+    user_id: int
+    template_type: TemplateType
+    business_name: Optional[str]
+    business_description: Optional[str]
+    status: WebsiteStatus
+    github_repo_url: Optional[str]
+    netlify_site_url: Optional[str]
+    netlify_admin_url: Optional[str]
+    site_brief: Optional[Dict[str, Any]]
+    theme_tokens: Optional[Dict[str, Any]]
+    custom_css: Optional[str]
+    preview_url: Optional[str]
+    deployment_config: Optional[Dict[str, Any]]
+    error_message: Optional[str]
+    created_at: datetime
+    updated_at: datetime
+
+    class Config:
+        from_attributes = True
+
+
+class WebsitePreviewRequest(BaseModel):
+    """Request model for generating website preview."""
+    user_id: int
+    intake_data: Dict[str, Any] = Field(..., description="Business intake data")
+    template_type: Optional[TemplateType] = Field(None, description="Template type override")
+
+
+class WebsiteDeploymentRequest(BaseModel):
+    """Request model for deploying website."""
+    user_id: int
+    intake_data: Dict[str, Any] = Field(..., description="Business intake data")
+    template_type: Optional[TemplateType] = Field(None, description="Template type override")
+    custom_domain: Optional[str] = Field(None, description="Custom domain for deployment")
+
+
+class WebsiteStatusUpdate(BaseModel):
+    """Request model for updating website status."""
+    status: WebsiteStatus
+    github_repo_url: Optional[str] = None
+    netlify_site_url: Optional[str] = None
+    netlify_admin_url: Optional[str] = None
+    preview_url: Optional[str] = None
+    error_message: Optional[str] = None
+
+
+# Database model for SQLAlchemy
+class UserWebsite:
+    """SQLAlchemy model for UserWebsite table."""
+    
+    def __init__(self, **kwargs):
+        for key, value in kwargs.items():
+            setattr(self, key, value)
+    
+    def to_dict(self) -> Dict[str, Any]:
+        """Convert model to dictionary."""
+        return {
+            'id': getattr(self, 'id', None),
+            'user_id': getattr(self, 'user_id', None),
+            'template_type': getattr(self, 'template_type', None),
+            'business_name': getattr(self, 'business_name', None),
+            'business_description': getattr(self, 'business_description', None),
+            'status': getattr(self, 'status', None),
+            'github_repo_url': getattr(self, 'github_repo_url', None),
+            'netlify_site_url': getattr(self, 'netlify_site_url', None),
+            'netlify_admin_url': getattr(self, 'netlify_admin_url', None),
+            'site_brief': getattr(self, 'site_brief', None),
+            'theme_tokens': getattr(self, 'theme_tokens', None),
+            'custom_css': getattr(self, 'custom_css', None),
+            'preview_url': getattr(self, 'preview_url', None),
+            'deployment_config': getattr(self, 'deployment_config', None),
+            'error_message': getattr(self, 'error_message', None),
+            'created_at': getattr(self, 'created_at', None),
+            'updated_at': getattr(self, 'updated_at', None),
+        }