fix: improve release scripts with .env loading and idempotent publish

Scripts now auto-load .env for GITEA_TOKEN, handle re-publishing
by deleting existing versions first, and release.sh does build +
publish + install in one command.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

scripts/release.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+PROJECT_ROOT="$(dirname "$SCRIPT_DIR")"
+cd "$PROJECT_ROOT"
+
+# Load .env if present
+if [ -f .env ]; then
+  set -a; source .env; set +a
+fi
+
+echo "=== mcpctl release ==="
+echo ""
+
+# Build
+bash scripts/build-rpm.sh
+
+echo ""
+
+# Publish
+bash scripts/publish-rpm.sh
+
+echo ""
+
+# Install locally
+echo "==> Installing locally..."
+RPM_FILE=$(ls dist/mcpctl-*.rpm 2>/dev/null | head -1)
+sudo rpm -U --force "$RPM_FILE"
+
+echo ""
+echo "==> Installed:"
+mcpctl --version
+echo ""
+
+GITEA_URL="${GITEA_URL:-http://10.0.0.194:3012}"
+GITEA_OWNER="${GITEA_OWNER:-michal}"
+echo "=== Done! ==="
+echo "Others can install with:"
+echo "  sudo dnf config-manager --add-repo ${GITEA_URL}/api/packages/${GITEA_OWNER}/rpm.repo"
+echo "  sudo dnf install mcpctl"