Initial commit: VaultMesh Skills collection

Collection of operational skills for VaultMesh infrastructure including:
- backup-sovereign: Backup and recovery operations
- btc-anchor: Bitcoin anchoring
- cloudflare-tunnel-manager: Cloudflare tunnel management
- container-registry: Container registry operations
- disaster-recovery: Disaster recovery procedures
- dns-sovereign: DNS management
- eth-anchor: Ethereum anchoring
- gitea-bootstrap: Gitea setup and configuration
- hetzner-bootstrap: Hetzner server provisioning
- merkle-forest: Merkle tree operations
- node-hardening: Node security hardening
- operator-bootstrap: Operator initialization
- proof-verifier: Cryptographic proof verification
- rfc3161-anchor: RFC3161 timestamping
- secrets-vault: Secrets management

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

operator-bootstrap/scripts/rollback/undo_identity.sh

@@ -0,0 +1,76 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# === METADATA ===
+SCRIPT_NAME="$(basename "$0")"
+
+# === CONFIGURATION ===
+: "${NODE_NAME:=node-a}"
+: "${OPERATOR_EMAIL:=}"
+
+# === FUNCTIONS ===
+log_info()  { echo "[INFO]  $(date -Iseconds) $*"; }
+log_warn()  { echo "[WARN]  $(date -Iseconds) $*" >&2; }
+log_error() { echo "[ERROR] $(date -Iseconds) $*" >&2; }
+
+main() {
+    log_info "Starting $SCRIPT_NAME - ROLLBACK identity..."
+
+    echo ""
+    echo "============================================"
+    echo "  IDENTITY ROLLBACK"
+    echo "  WARNING: This will remove GPG and SSH keys!"
+    echo "============================================"
+    echo ""
+    echo "This will:"
+    echo "  - Remove SSH keys: ~/.ssh/id_*_${NODE_NAME}*"
+    echo "  - Restore SSH config from backup"
+    if [[ -n "$OPERATOR_EMAIL" ]]; then
+        echo "  - Prompt for GPG key removal (manual step)"
+    fi
+    echo ""
+
+    read -p "Type 'CONFIRM' to proceed: " confirm
+
+    if [[ "$confirm" != "CONFIRM" ]]; then
+        log_info "Aborted - no changes made"
+        exit 0
+    fi
+
+    # Remove SSH keys
+    log_info "Removing SSH keys..."
+    rm -f "$HOME/.ssh/id_ed25519_${NODE_NAME}"
+    rm -f "$HOME/.ssh/id_ed25519_${NODE_NAME}.pub"
+    rm -f "$HOME/.ssh/id_rsa_${NODE_NAME}"
+    rm -f "$HOME/.ssh/id_rsa_${NODE_NAME}.pub"
+    log_info "SSH keys removed"
+
+    # Restore SSH config backup
+    local latest_backup
+    latest_backup=$(ls -t "$HOME/.ssh/config.bak."* 2>/dev/null | head -1 || true)
+    if [[ -n "$latest_backup" ]]; then
+        cp "$latest_backup" "$HOME/.ssh/config"
+        log_info "SSH config restored from $latest_backup"
+    else
+        log_warn "No SSH config backup found"
+    fi
+
+    # GPG key removal guidance
+    if [[ -n "$OPERATOR_EMAIL" ]]; then
+        echo ""
+        echo "============================================"
+        echo "  GPG KEY REMOVAL (MANUAL STEP)"
+        echo "============================================"
+        echo ""
+        echo "To remove the GPG key, run these commands:"
+        echo ""
+        echo "  gpg --delete-secret-keys $OPERATOR_EMAIL"
+        echo "  gpg --delete-keys $OPERATOR_EMAIL"
+        echo ""
+        log_warn "GPG key requires manual removal for safety"
+    fi
+
+    log_info "Completed $SCRIPT_NAME"
+}
+
+[[ "${BASH_SOURCE[0]}" == "$0" ]] && main "$@"