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/21_encrypt_apply.sh

@@ -0,0 +1,66 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# === METADATA ===
+SCRIPT_NAME="$(basename "$0")"
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+SKILL_ROOT="$(dirname "$SCRIPT_DIR")"
+
+# === CONFIGURATION ===
+: "${OUTPUT_DIR:=$SKILL_ROOT/outputs}"
+: "${AGE_RECIPIENT_FILE:=}"
+: "${DRY_RUN:=1}"
+: "${REQUIRE_CONFIRM:=1}"
+: "${CONFIRM_PHRASE:=I UNDERSTAND THIS WILL CREATE AND ENCRYPT BACKUPS}"
+
+# === FUNCTIONS ===
+log_info()  { echo "[INFO]  $(date -Iseconds) $*"; }
+log_error() { echo "[ERROR] $(date -Iseconds) $*" >&2; }
+die()       { log_error "$@"; exit 1; }
+
+require_confirm() {
+    [[ "$DRY_RUN" == "0" ]] || die "DRY_RUN=$DRY_RUN (set DRY_RUN=0 to apply)."
+
+    if [[ "$REQUIRE_CONFIRM" == "1" ]]; then
+        echo ""
+        echo "CONFIRMATION REQUIRED"
+        echo "Type the phrase exactly to continue:"
+        echo "  $CONFIRM_PHRASE"
+        read -r input
+        [[ "$input" == "$CONFIRM_PHRASE" ]] || die "Confirmation phrase mismatch; aborting."
+    fi
+}
+
+main() {
+    require_confirm
+
+    local last_run_file="$OUTPUT_DIR/last_run_dir.txt"
+    [[ -f "$last_run_file" ]] || die "No last run pointer. Run 11_backup_apply.sh first."
+
+    local run_dir
+    run_dir="$(cat "$last_run_file")"
+
+    local archive="$run_dir/archive.tar.gz"
+    [[ -f "$archive" ]] || die "Missing archive: $archive"
+
+    [[ -n "$AGE_RECIPIENT_FILE" ]] || die "AGE_RECIPIENT_FILE is required for encryption."
+    [[ -f "$AGE_RECIPIENT_FILE" ]] || die "AGE_RECIPIENT_FILE not found: $AGE_RECIPIENT_FILE"
+
+    local encrypted="$run_dir/archive.tar.gz.age"
+
+    log_info "Encrypting with age..."
+    log_info "Input: $archive"
+    log_info "Output: $encrypted"
+    log_info "Recipients: $AGE_RECIPIENT_FILE"
+
+    age -R "$AGE_RECIPIENT_FILE" -o "$encrypted" "$archive"
+
+    local enc_size
+    enc_size=$(stat -c%s "$encrypted")
+    log_info "Encrypted size: $enc_size bytes"
+
+    log_info "Encryption complete."
+    log_info "Next: ./scripts/30_generate_proof.sh"
+}
+
+[[ "${BASH_SOURCE[0]}" == "$0" ]] && main "$@"