Automate Job Post Expiry Reminders with Google Sheets, HTTP Checks & Gmail

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Job post expiry & refresh reminders from Google Sheets using HTTP Last‑Modified checks This workflow checks each job URL in your Google Sheet and identifies listings that look stale based on the page’s Last‑Modified date. At 10:00 Asia/Kolkata every day, it requests each URL (HEAD, then GET if needed), calculates the age in days, and sends a polite email reminder to the recruiter when age ≥ a configurable threshold (default 30 days). It includes a DRY_RUN mode to preview who would be emailed, a