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>

dns-sovereign/scripts/rollback/undo_zone.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+set -euo pipefail
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+SKILL_ROOT="$(dirname "$(dirname "$SCRIPT_DIR")")"
+source "$SKILL_ROOT/scripts/_common.sh"
+
+: "${PDNS_API_KEY:=}"
+: "${PDNS_WEB_PORT:=8081}"
+: "${ZONE_NAME:=}"
+
+api() {
+  local method="$1"; shift
+  local url="$1"; shift
+  curl -sS -X "$method" "$url" -H "X-API-Key: $PDNS_API_KEY" -H "Content-Type: application/json" "$@"
+}
+
+main() {
+  confirm_gate
+  [[ -n "$PDNS_API_KEY" ]] || die "PDNS_API_KEY required."
+  [[ -n "$ZONE_NAME" ]] || die "ZONE_NAME required."
+
+  local zone="${ZONE_NAME%\.}."
+  local base="http://127.0.0.1:${PDNS_WEB_PORT}/api/v1/servers/localhost"
+  log_warn "Deleting zone: $zone"
+  api DELETE "$base/zones/$zone" | jq '.' || die "Failed to delete zone."
+  log_info "Zone rollback complete."
+}
+main "$@"