Create & track LinkedIn posts with Google Sheets, GPT-5.1, Unsplash, and Sona

Automate LinkedIn content creation by managing ideas in Google Sheets, generating professional AI-written posts, intelligently selecting relevant Unsplash images, sending drafts for email approval, and publishing directly to LinkedIn. How it works Step 1: Scheduled Sheet Check Workflow runs daily at midnight (customizable to hourly/weekly) Fetches posts from Google Sheet marked with Status = "Ready" Processes one post per run, updates status to "In Progress" Step 2: AI Content Generation GPT-5.1 creates engaging LinkedIn post based on your inputs Generates content with proper hashtags, formatting, and tone Follows your specified content type (tip, story, announcement, etc.) Step 3: Quality V

Help me set up the n8n workflow "Create & track LinkedIn posts with Google Sheets, GPT-5.1, Unsplash, and Sona" (https://n8n.io/workflows/12325). It uses: Google Sheets, HTTP Request, Gmail, LinkedIn, Code, AI Agent, OpenAI Chat Model, Structured Output Parser. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.