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/scripts/rollback/undo_last_backup.sh

@@ -0,0 +1,61 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# === METADATA ===
+SCRIPT_NAME="$(basename "$0")"
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+SKILL_ROOT="$(dirname "$(dirname "$SCRIPT_DIR")")"
+
+# === CONFIGURATION ===
+: "${OUTPUT_DIR:=$SKILL_ROOT/outputs}"
+
+# === FUNCTIONS ===
+log_info()  { echo "[INFO]  $(date -Iseconds) $*"; }
+log_warn()  { echo "[WARN]  $(date -Iseconds) $*" >&2; }
+log_error() { echo "[ERROR] $(date -Iseconds) $*" >&2; }
+die()       { log_error "$@"; exit 1; }
+
+main() {
+    local last_run_file="$OUTPUT_DIR/last_run_dir.txt"
+
+    if [[ ! -f "$last_run_file" ]]; then
+        log_warn "No last run pointer found. Nothing to undo."
+        exit 0
+    fi
+
+    local run_dir
+    run_dir="$(cat "$last_run_file")"
+
+    if [[ ! -d "$run_dir" ]]; then
+        log_warn "Run directory does not exist: $run_dir"
+        rm -f "$last_run_file"
+        exit 0
+    fi
+
+    log_warn "This will remove the last backup run:"
+    log_warn "  $run_dir"
+    echo ""
+    echo "Type 'DELETE' to confirm:"
+    read -r confirm
+    [[ "$confirm" == "DELETE" ]] || die "Aborted."
+
+    # Clean up restore drill temp directory if it exists
+    if [[ -f "$run_dir/last_restore_dir.txt" ]]; then
+        local restore_dir
+        restore_dir="$(cat "$run_dir/last_restore_dir.txt")"
+        if [[ -d "$restore_dir" ]]; then
+            log_info "Removing restore drill temp: $restore_dir"
+            rm -rf "$restore_dir"
+        fi
+    fi
+
+    log_info "Removing run directory: $run_dir"
+    rm -rf "$run_dir"
+
+    log_info "Removing last run pointer"
+    rm -f "$last_run_file"
+
+    log_info "Undo complete."
+}
+
+[[ "${BASH_SOURCE[0]}" == "$0" ]] && main "$@"