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/track-changes.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+# Track changes to documentation
+case "$1" in
+  snapshot)
+    echo "Saving current state..."
+    ;;
+  list)
+    echo "Showing snapshots..."
+    ;;
+  since)
+    echo "Changes since $2..."
+    ;;
+  *)
+    echo "Usage: track-changes.sh {snapshot|list|since <date>}"
+    ;;
+esac