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>

eth-anchor/references/eth_anchor_notes.md

@@ -0,0 +1,12 @@
+# ETH Anchor Notes
+
+## Method
+v1 anchors by sending a normal transaction with calldata set to 32-byte root.
+
+- to: 0x000...000 (null) by default
+- value: 0
+- data: 0x + root_hex (padded/truncated to 32 bytes)
+
+## Security
+- Prefer a dedicated small hot key funded only for anchoring.
+- For mainnet, consider hardware wallet signing in a later version.