init: clean history with no PII

Toto repo ma novou cistou historii (1 commit). Predchozi historie
byla smazana, protoze obsahovala osobni udaje (IP, emaily, hesla,
klice, tokeny, Volume cesty). Soubory v aktualnim commit uz tyto
udaje neobsahuji (nahradeno placeholdery <server-ip>, CHANGE_ME,
admin@example.com atd.).

Pokud chces zpet kompletni seznam starych commitu, mas je ve svem
lokalnim working tree - git log --all ukaze prazdno (protoze jsme
smazali .git/ a zacali znovu).

update-macos.sh

@@ -0,0 +1,48 @@
+#!/usr/bin/env bash
+
+set -e
+
+echo ""
+echo "======================================"
+echo " macOS + Homebrew Update"
+echo "======================================"
+echo ""
+
+# Kontrola Homebrew
+if ! command -v brew >/dev/null 2>&1; then
+    echo "Homebrew není nainstalovaný."
+    exit 1
+fi
+
+echo "→ Aktualizace Homebrew metadata..."
+brew update
+
+echo ""
+echo "→ Upgrade formulae..."
+brew upgrade
+
+echo ""
+echo "→ Upgrade casks..."
+brew upgrade --cask
+
+echo ""
+echo "→ Cleanup..."
+brew cleanup
+
+echo ""
+echo "→ Autoremove..."
+brew autoremove
+
+echo ""
+echo "→ Health check..."
+brew doctor
+
+echo ""
+echo "→ Outdated packages:"
+brew outdated || true
+
+echo ""
+echo "======================================"
+echo " Hotovo"
+echo "======================================"
+echo ""