CyberMind-FR 434e501dae fix(metrics): Use date -r for OpenWrt file mtime and fix grep -c double output ... - Replace stat -c %Y with date -r for BusyBox compatibility (stat not available) - Fix get_cache_age() to properly return early when cache file missing - Fix grep -c || echo 0 pattern that caused "invalid number '0\n0'" errors - Add proper numeric defaults using : "${var:=0}" pattern - Add freshness metadata (_freshness) with age, timestamp, and fresh boolean Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>		2026-03-20 11:40:04 +01:00
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secubox	fix(metrics): Use date -r for OpenWrt file mtime and fix grep -c double output	2026-03-20 11:40:04 +01:00