Timo Knuth 76bde71585 fix: correct metadata dates, remove draft note, remove duplicate section ... - Fixed all 'undefined NaN, NaN' dates in metadata divs across all 22 posts - Removed draft instruction from qr-code-scan-statistics-2026 - Removed duplicate 'Trackable / dynamic QR code' section from trackable-qr-codes - All posts now have proper 'Last updated' dates showing January 26, 2026		2026-03-06 16:01:01 +01:00
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openai.yaml	fix: correct metadata dates, remove draft note, remove duplicate section	2026-03-06 16:01:01 +01:00