Resolves#20
Changes:
- Add hcloud_token to secrets/shared.sops.yaml (encrypted with Age)
- Create scripts/load-secrets-env.sh to automatically load token from SOPS
- Update all management scripts to auto-load token if not set
- Remove plaintext tokens from tofu/terraform.tfvars
- Update documentation in README.md, scripts/README.md, and SECURITY-NOTE-tokens.md
Benefits:
✅ Token encrypted at rest
✅ Can be safely backed up to cloud storage
✅ Consistent with other secrets management
✅ Automatic loading - no manual token management needed
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
