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>

hetzner-bootstrap/scripts/00_preflight.sh

@@ -0,0 +1,64 @@
+#!/usr/bin/env bash
+set -euo pipefail
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+source "$SCRIPT_DIR/_common.sh"
+
+: "${NODE_NAME:=}"
+: "${SOVEREIGN_USER:=sovereign}"
+: "${SSH_PUBLIC_KEY:=}"
+: "${SSH_PORT:=}"                 # optional; auto-detect in apply if unset
+: "${INSTALL_CLOUDFLARED:=true}"
+: "${INSTALL_WIREGUARD:=true}"
+: "${WG_PORT:=51820}"
+
+main() {
+  require_root
+
+  [[ -n "$NODE_NAME" ]] || die "NODE_NAME is required"
+  [[ -n "$SSH_PUBLIC_KEY" ]] || die "SSH_PUBLIC_KEY is required"
+
+  # Required baseline tools for a typical Hetzner Debian/Ubuntu image.
+  need apt
+  need systemctl
+  need hostnamectl
+  need sed
+  need grep
+  need getent
+  need id
+  need chmod
+  need chown
+
+  # Soft checks: these may be installed during apply.
+  if ! command -v ufw >/dev/null 2>&1; then
+    log_warn "ufw not found (will be installed during apply)."
+  fi
+  if ! command -v sshd >/dev/null 2>&1; then
+    log_warn "sshd not found (openssh-server may be installed during apply)."
+  fi
+  if [[ "$INSTALL_WIREGUARD" == "true" ]] && ! command -v wg >/dev/null 2>&1; then
+    log_warn "wg not found (wireguard will be installed during apply)."
+  fi
+
+  if [[ "$INSTALL_CLOUDFLARED" == "true" ]]; then
+    if ! command -v curl >/dev/null 2>&1; then
+      log_warn "curl not found (will be installed during apply)."
+    fi
+    if ! command -v gpg >/dev/null 2>&1; then
+      log_warn "gpg not found (will be installed during apply via gnupg)."
+    fi
+    code="$(os_codename)"
+    if [[ -z "$code" ]]; then
+      log_warn "Could not determine OS codename in preflight; apply will attempt again."
+    else
+      log_info "OS codename detected: $code"
+    fi
+  fi
+
+  if [[ -n "$SSH_PORT" ]]; then
+    log_info "SSH_PORT override set: $SSH_PORT"
+  fi
+
+  log_info "Preflight OK."
+  log_info "Reminder: keep an open root session until sovereign access is verified."
+}
+main "$@"