Adopt the org-wide IOracle ABI

[rohans02]

Addressed Issues:

Frontend half of StabilityNexus/Fate-Solidity#43, which renamed the oracle read to the org-wide IOracle interface.

Screenshots/Recordings:

Not applicable. ABI files and one call site; no visual change.

Additional Notes:

• IOracle.ts now carries the org interface: readValue, readValueInterval, lastUpdated, description. getLatestPrice and getLatestRoundData are removed from the interface ABI.
• ChainlinkOracle.ts and HebeswapOracle.ts rename getLatestPrice to readValue and add the other three functions. Hebeswap description is pure, Chainlink is view, matching the contracts.
• InteractionClient.tsx calls readValue instead of getLatestPrice. It was the only call site.
• Every entry in the three ABI files was checked against the Solidity sources on main (names, argument and return types, mutability, errors).

Open question: Ethereum Classic mainnet (61) is in addresses.ts but is not on the redeploy list. After this merges, readValue reverts on ETC pools. Two options:

1. Drop 61 from addresses.ts until the new contract set is deployed there.
2. Keep a readValue -> getLatestPrice fallback at the InteractionClient call site for chains still on the old oracles.

This stays a draft until the Sepolia redeploy with the final contract set lands and that question is answered.

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