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>

btc-anchor/scripts/11_apply.sh

@@ -0,0 +1,75 @@
+#!/usr/bin/env bash
+set -euo pipefail
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+SKILL_ROOT="$(dirname "$SCRIPT_DIR")"
+source "$SCRIPT_DIR/_common.sh"
+
+: "${BTC_NETWORK:=testnet}"
+: "${BTC_FEE_RATE:=5}"
+: "${OP_RETURN_PREFIX:=VM}"
+: "${LABEL:=btc-anchor}"
+
+main() {
+  confirm_gate
+  flag="$(net_flag)"
+  mkdir -p "$SKILL_ROOT/outputs/runs"
+  ts="$(date -Iseconds | tr ':' '-')"
+  run_dir="$SKILL_ROOT/outputs/runs/${LABEL}_${ts}"
+  mkdir -p "$run_dir"
+
+  root_hex="$(read_root_hex)"
+  echo "$root_hex" > "$run_dir/root_hex.txt"
+  prefix_hex="$(ascii_to_hex "$OP_RETURN_PREFIX")"
+  payload="${prefix_hex}${root_hex}"
+  payload="${payload:0:160}"
+  echo "$payload" > "$run_dir/op_return_hex.txt"
+
+  # 1) create raw tx with single OP_RETURN output (no inputs yet)
+  raw="$(bitcoin-cli $flag createrawtransaction "[]" "{\"data\":\"$payload\"}")"
+  # 2) fund via PSBT
+  funded="$(bitcoin-cli $flag walletcreatefundedpsbt "[]" "{\"data\":\"$payload\"}" 0 "{\"fee_rate\":$BTC_FEE_RATE}")"
+  psbt="$(echo "$funded" | jq -r '.psbt')"
+  [[ -n "$psbt" && "$psbt" != "null" ]] || die "walletcreatefundedpsbt did not return psbt"
+
+  # 3) process (sign) psbt
+  processed="$(bitcoin-cli $flag walletprocesspsbt "$psbt")"
+  psbt2="$(echo "$processed" | jq -r '.psbt')"
+
+  # 4) finalize
+  finalized="$(bitcoin-cli $flag finalizepsbt "$psbt2")"
+  hex="$(echo "$finalized" | jq -r '.hex')"
+  complete="$(echo "$finalized" | jq -r '.complete')"
+  [[ "$complete" == "true" ]] || die "finalizepsbt not complete"
+  echo "$hex" > "$run_dir/rawtx.hex"
+
+  # 5) send
+  txid="$(bitcoin-cli $flag sendrawtransaction "$hex")"
+  [[ -n "$txid" ]] || die "Failed to send tx"
+  echo "$txid" > "$run_dir/txid.txt"
+
+  # proof
+  cat > "$run_dir/PROOF.json" <<EOF
+{
+  "skill": "btc-anchor",
+  "version": "1.0.0",
+  "timestamp": "$(date -Iseconds)",
+  "network": "$BTC_NETWORK",
+  "fee_rate_sat_vb": "$BTC_FEE_RATE",
+  "op_return_prefix": "$(json_escape "$OP_RETURN_PREFIX")",
+  "op_return_hex": "$(json_escape "$payload")",
+  "root_hex": "$(json_escape "$root_hex")",
+  "txid": "$(json_escape "$txid")",
+  "artifacts": {
+    "root_hex_file": "root_hex.txt",
+    "op_return_hex_file": "op_return_hex.txt",
+    "rawtx": "rawtx.hex",
+    "txid_file": "txid.txt"
+  }
+}
+EOF
+
+  echo "$run_dir" > "$SKILL_ROOT/outputs/last_run_dir.txt"
+  log_info "Anchored on BTC ($BTC_NETWORK). txid=$txid"
+  log_info "Run dir: $run_dir"
+}
+main "$@"