Windows/Android/Server library content lives in database rows (scripts/qa_log/shortcuts/commands tables), not files, so FreeCommander can never show it. Built frontend/30-Tech/apps/library-lookup.html: pick a library, search across all 4 categories at once, live counts per category, highlighted match text. Uses tech-library-proxy.php (built 09/08/26). Caught and fixed a field-name mismatch before finalizing: commands table uses 'cmd' not 'code'. Linked from Tech's categorized page list and added to page-inventory.html.