`giveFeedback` fails on Monad (chain 143): hardcoded gas limit too low + chain not in DEFAULT_REGISTRIES

[arcxteam]

Can add monad on this SDK

Body:

## Summary

`giveFeedback()` always reverts on Monad mainnet (chain 143) because the hardcoded `GIVE_FEEDBACK_GAS_LIMIT = 300000n` is insufficient. The actual gas required on Monad is ~318,617. Additionally, Monad mainnet (chain 143) is not included in `DEFAULT_REGISTRIES`, requiring manual `registryOverrides`.

## Environment

- **SDK version:** 1.5.3
- **Chain:** Monad mainnet (chain 143)
- **RPC:** https://rpc3.monad.xyz
- **Contract:** ReputationRegistry `0x8004BAa17C55a88189AE136b182e5fdA19dE9b63` (deterministic, same as ETH/Base/Polygon)
- **Agent ID:** 8317

## 1: Gas Limit Too Low

In my check `feedback-manager.js`, the gas limit is hardcoded:

```js
const GIVE_FEEDBACK_GAS_LIMIT = 300000n;

On Monad (chain 143), giveFeedback requires approximately 318,617 gas — exceeding the hardcoded limit by ~6%. This causes every giveFeedback call to revert.

Reproduction

import { SDK } from 'agent0-sdk';

const sdk = new SDK({
  chainId: 143,
  rpcUrl: 'https://rpc3.monad.xyz',
  privateKey: '0x...', 
  registryOverrides: {
    143: {
      IDENTITY: '0x8004A169FB4a3325136EB29fA0ceB6D2e539a432',
      REPUTATION: '0x8004BAa17C55a88189AE136b182e5fdA19dE9b63',
    },
  },
});

// This TX will revert (out of gas)
const tx = await sdk.giveFeedback('143:8317', 50, 'trade_execution', 'test', '');

Failed TX (SDK, gas limit 300,000):

Reverts on-chain.

Successful TX (direct viem call, no gas limit cap):

0x1e455ec2bd3625ec832da2506a092f07d088c9be497dbeec1db4b63d294acedf
Block #56687197 — Gas used: 318,617

Workaround

Bypass the SDK and call the contract directly via viem:

import { createWalletClient, http } from 'viem';
import { privateKeyToAccount } from 'viem/accounts';

const hash = await walletClient.writeContract({
  address: '0x8004BAa17C55a88189AE136b182e5fdA19dE9b63',
  abi: REPUTATION_REGISTRY_ABI, // from official contract ABI
  functionName: 'giveFeedback',
  args: [8317n, 50n, 0, 'trade_execution', 'test', '', '', '0x' + '00'.repeat(32)],
  // No gas limit — let the node estimate correctly
});

Suggested Fix

Either:

1. Increase GIVE_FEEDBACK_GAS_LIMIT to at least 350000n (with headroom), or
2. Make it configurable via SDK options (e.g., new SDK({ gasOverrides: { giveFeedback: 400000n } })), or
3. Remove it and let the RPC node estimate gas automatically (as the comment notes, some RPC providers have issues — but Monad doesn't)

2: Monad (chain 143) Not in DEFAULT_REGISTRIES

The ERC-8004 contracts are deployed on Monad mainnet at the same deterministic addresses:

• Identity: 0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
• Reputation: 0x8004BAa17C55a88189AE136b182e5fdA19dE9b63

But chain 143 is not listed in DEFAULT_REGISTRIES in contracts.js. Without registryOverrides, the SDK throws:

Error: No reputation registry address for chain 143

Suggested Fix

Add Monad to DEFAULT_REGISTRIES:

143: {
  // Monad Mainnet
  IDENTITY: '0x8004A169FB4a3325136EB29fA0ceB6D2e539a432',
  REPUTATION: '0x8004BAa17C55a88189AE136b182e5fdA19dE9b63',
},

Impact

Any project using agent0-sdk on Monad cannot use giveFeedback() at all — the gas limit silently kills every transaction. The registryOverrides workaround solves the registry lookup, but the gas issue remains a blocker.

We are running an autonomous ERC-8004 trading agent on Monad mainnet and discovered this while integrating on-chain reputation feedback.