Opdata 3775 update por to process decimal value from view-function-multi-chain

[Subarna-Singh]

Closes #OPDATA 3775 - Step 2

Description

Add functionality to process decimals from view-function-multi-chain

Steps to Test

yarn test packages/composite/proof-of-reserves/test

Input

{
  "data": {
    "endpoint": "multiReserves",
    "input":[
        {
            "addresses": [
            ""
            ],
            "disableDuplicateAddressFiltering": true,
            "indexer": "view_function_multi_chain",
            "indexerEndpoint": "function",
            "indexerParams": {
            "address": "0xa69b964a597435A2F938cc55FaAbe34F2A9AF278",
            "network": "BASE",
            "signature": "function getPending() public view returns (uint256)",
            "data": {
                "decimals": {
                    "signature": "function decimals() view returns (uint8)"
                    }
                }
            },
            "protocol": "list"
        }
    ]
  }
}

Output

{
    "result": "5400000000000000000000000",
    "maxAge": 30000,
    "statusCode": 200,
    "data": {
        "result": "5400000000000000000000000",
        "details": "{\"result\":\"5400000000000000000000000\",\"statusCode\":200,\"decimals\":18}",
        "statusCode": 200,
        "decimals": 18,
        "timestamps": {
            "providerDataRequestedUnixMs": 1760548348898,
            "providerDataReceivedUnixMs": 1760548356440
        }
    },
    "meta": {
        "adapterName": "PROOF_OF_RESERVES"
    },
    "metricsMeta": {
        "feedId": "573c61f3f25b16350242326d87a24e4a"
    }
}

Quality Assurance

• If a new adapter was made, or an existing one was modified so that its environment variables have changed, update the relevant infra-k8s configuration file.
• If a new adapter was made, or an existing one was modified so that its environment variables have changed, update the relevant adapter-secrets configuration file or update the soak testing blacklist.
• If a new adapter was made, or a new endpoint was added, update the test-payload.json file with relevant requests.
• The branch naming follows git flow (feature/x, chore/x, release/x, hotfix/x, fix/x) or is created from Jira.
• This is related to a maximum of one Jira story or GitHub issue.
• Types are safe (avoid TypeScript/TSLint features like any and disable, instead use more specific types).
• All code changes have 100% unit and integration test coverage. If testing is not applicable or too difficult to justify doing, the reasoning should be documented explicitly in the PR.

[changeset-bot]

🦋 Changeset detected

Latest commit: 1a278d6

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

This PR includes changesets to release 3 packages

Name	Type
@chainlink/view-function-multi-chain-adapter	Minor
@chainlink/proof-of-reserves-adapter	Minor
@chainlink/renvm-address-set-adapter	Patch

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