Feat/deploy agents: deploy all 4 agents to Cloudflare Workers and register ERC-8004 identities on BSC Testnet

[moises-cisneros]

Summary

• Deployed Cloudflare Workers for all remaining seed agents: rangekeeper-agent (rebalancing), yieldrouter-agent (yield), and gridrunner-agent (grid_trading), exposing live HTTPS endpoints for A2A (/.well-known/agent-card.json), MCP (/mcp), and Liveness (/ping).
• Registered on-chain ERC-8004 identities for all three agents on BSC Testnet (Chain ID 97) with sponsored MegaFuel paymaster gas:
  • rangekeeper (rebalancing): Token ID 2300 (wallet 0xCC2abE29F43EAb530a6b5D93E3C41bc0E7622b47)
  • yieldrouter (yield): Token ID 2301 (wallet 0xe1D07be03DDE2C292f842AdE4f34782FDf9176c5)
  • gridrunner (grid_trading): Token ID 2302 (wallet 0x78f800FBA857Ae0a33eEa55f62a68ddA20b27185)
• Together with hfwatch (Token ID 2292), all 4 marketplace categories now have live, verifiable ERC-8004 agents deployed on BNB Chain.
• Completed and validated OpenSpec proposal openspec/changes/deploy-register-remaining-agents (bunx openspec validate deploy-register-remaining-agents).
• Resolves Hire is mock-only on live chains, violating the commerce spec #8.

Workstream

• P Platform
• C Catalog
• H Commerce
• A Agents
• S Signal

Review first

• Diff stays strictly in this workstream's tree (agents/*, openspec/changes/*)
• packages/domain untouched
• After merge, land → category → hire still works on main

Out of scope

• Direct fixture editing (packages/indexer/fixtures/featured.json) — strictly owned by Stream C (Catalog).
• Frontend or UI modifications (apps/web/*).

Test plan

• pnpm typecheck (all 6 workspace packages passing with zero errors)
• bunx openspec validate deploy-register-remaining-agents (validated)
• Verified live HTTPS endpoints on Cloudflare Workers:
  • rangekeeper: https://rangekeeper-agent.moisescisnerosdl.workers.dev/ping (200 OK)
  • yieldrouter: https://yieldrouter-agent.moisescisnerosdl.workers.dev/ping (200 OK)
  • gridrunner: https://gridrunner-agent.moisescisnerosdl.workers.dev/ping (200 OK)
• Verified on-chain ERC-8004 identity registrations on BSC Testnet (Chain ID 97) using pnpm register --check across all 4 agents.