Add skills, learnings & memory updates (2026-01-26)

- New skills: clawddocs, claude-code-usage, summarize, homeassistant, humanizer, self-improving-agent
- Add .learnings/ for self-improvement tracking
- Document proaktive cron config (LRN-20260126-001)
- Update USER.md: Löchgau as former residence
- Update TOOLS.md: Peekaboo workaround
- Memory files for 2026-01-25 and 2026-01-26

skills/clawddocs/scripts/recent.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+# Show recently updated docs
+DAYS=${1:-7}
+echo "Docs updated in the last $DAYS days"
+# In full version, this queries the change tracking