Add spot-advanced-swap-orders skill

[RanSHammer]

Summary

• Adds the spot-advanced-swap-orders skill to the curated skills catalog
• Gasless, non-custodial, oracle-protected DeFi swap orders on 8 EVM chains
• Supports market, limit, TWAP, stop-loss, take-profit, and delayed-start orders
• Uses immutable, audited, battle-tested contracts with decentralized execution
• EIP-712 signing, approval calldata, order status lookup, and automated execution
• MIT licensed

Skill structure

skills/.curated/spot-advanced-swap-orders/
  SKILL.md              # Main skill: workflow, guardrails, commands
  manifest.json         # Machine-readable entrypoint, chain matrix, contract addresses
  LICENSE.txt           # MIT license
  agents/
    openai.yaml         # Codex display metadata
  references/
    01-quickstart.md    # Minimum end-to-end flow
    02-params.md        # Field semantics, defaults, units, validation
    03-sign.md          # Signing, signature formats, onchain cancel
    04-patterns.md      # Order shape patterns (market, limit, TWAP, etc.)
  scripts/
    order.js            # CLI helper: prepare, submit, query, watch
  assets/
    token-addressbook.md          # Common token addresses by chain
    repermit.skeleton.json        # Raw RePermit witness typed-data skeleton
    web3-sign-and-submit.example.js  # Browser/injected-provider example

Supported chains

Ethereum, BNB Chain, Polygon, Sonic, Base, Arbitrum One, Avalanche, Linea

Links

• Canonical repo: https://github.com/orbs-network/spot
• npm: @orbs-network/spot
• Hosted files: https://orbs-network.github.io/spot/
• MCP server: io.github.orbs-network/spot (stdio transport)