Add Monday.trade aBIL APR on Monad

[tiago-hansen]

Summary

• Adds aBIL yield APR on Monad via the existing HTTP ybAprHandler pattern.
• Source: https://mainnet-api.monday.trade/rwa/api/v2/stock-yield/aBIL ($.data.apr).
• Token: 0x4fc5b9f8933597d3ecf84d0611687e1dc8dd576f.
• Scale: 100 (API returns percent, e.g. 2.46 → stored as 0.0246).

Test plan

• Confirm Monday.trade endpoint returns {"data":{"symbol":"aBIL","apr":2.46},...}
• Fetch Monad YB APRs and verify aBIL resolves to 0.0246
• Confirm production pool currently lacks aBIL IB_YIELD (only waMonUSDC + Merkl)
• After deploy, confirm pool 0x158d9dc39a3be0f2ce759deadbf18bae20dcf9d9 shows aBIL IB_YIELD APR on balancer.fi

Verification

Handler output:

[{"source":"http","chain":"MONAD","address":"0x4fc5b9f8933597d3ecf84d0611687e1dc8dd576f","apr":0.0246}]

Slack Thread

  

[cursor]

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[changeset-bot]

🦋 Changeset detected

Latest commit: 9ec15ff

The changes in this PR will be included in the next version bump.

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