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>

backup-sovereign/checks/check_restore.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+# Check: Last backup has passed restore drill
+# Returns 0 if restore drill completed, 1 otherwise
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+SKILL_ROOT="$(dirname "$SCRIPT_DIR")"
+
+: "${OUTPUT_DIR:=$SKILL_ROOT/outputs}"
+
+# Check for last run pointer
+[[ -f "$OUTPUT_DIR/last_run_dir.txt" ]] || exit 1
+
+run_dir="$(cat "$OUTPUT_DIR/last_run_dir.txt")"
+
+# Check for restore drill completion
+[[ -f "$run_dir/last_restore_dir.txt" ]]