feat: initial Go project scaffold with build/test/release pipeline

- Go module: github.com/netcell-it/deklarix
- cmd/server/main.go: HTTP entry point with /health endpoint
- scripts/build.sh: cross-compile amd64 + arm64
- scripts/test.sh: go vet + race tests + build-check
- scripts/release.sh: full release flow (test → build → tag → push)
- packaging/DEBIAN: .deb control template
- design/enterprise.css: enterprise design system from enconf
- CLAUDE.md: complete build/test/release documentation
- .claude/settings.local.json: Claude Code permissions

scripts/release.sh

@@ -0,0 +1,60 @@
+#!/usr/bin/env bash
+# Deklarix — Release-Skript
+#
+# Verwendung: ./scripts/release.sh <version>
+# Beispiel:   ./scripts/release.sh 1.2.0
+#
+# Was passiert:
+#   1. Tests laufen
+#   2. Build für amd64 + arm64
+#   3. git tag v<version> wird gesetzt
+#   4. git push origin main + git push origin v<version>
+#
+# Voraussetzungen:
+#   - Sauberer Git-Status (keine uncommitted changes)
+#   - Alle Tests grün
+
+set -euo pipefail
+
+REPO_DIR="$(cd "$(dirname "$0")/.." && pwd)"
+VERSION="${1:-}"
+
+if [[ -z "$VERSION" ]]; then
+    echo "Verwendung: $0 <version>  (z.B. 1.0.0)"
+    exit 1
+fi
+
+GRN='\033[0;32m'; BLD='\033[1m'; NC='\033[0m'
+log() { echo -e "${GRN}[release]${NC} $*"; }
+
+cd "$REPO_DIR"
+
+# Git-Status prüfen
+if [[ -n "$(git status --porcelain)" ]]; then
+    echo "FEHLER: Uncommitted changes vorhanden — bitte erst committen"
+    git status --short
+    exit 1
+fi
+
+log "Release v${VERSION} wird vorbereitet..."
+
+# Tests
+log "Tests laufen..."
+bash "$REPO_DIR/scripts/test.sh"
+
+# Build
+log "Build für alle Architekturen..."
+bash "$REPO_DIR/scripts/build.sh" "$VERSION"
+
+# Git Tag
+log "Tag v${VERSION} setzen..."
+git tag -a "v${VERSION}" -m "Release v${VERSION}"
+
+# Push
+log "Push main + Tag..."
+git push origin main
+git push origin "v${VERSION}"
+
+log ""
+log "Release v${VERSION} fertig ✓"
+log "Binaries: dist/deklarix_${VERSION}_amd64 + _arm64"