[Bug]: Unable to configure hardfork/ EIPS

### Describe the bug

Hey there 👋

We are hitting an issue with the latest release
It looks like the latest version is using `@metamsk/transaction-controller` `50.0.0`

This version define the default hardfork to be [Prague](https://github.com/MetaMask/core/blob/3350d56f237d0fc5ae2f3d7663c779fd7b025281/packages/transaction-controller/src/utils/prepare.ts?plain=1#L10)
and there are no way to configure how the chain `Common` from `@ethereumjs/common` is configured

This is how the `Common::custom` is being called:

https://github.com/MetaMask/core/blob/3350d56f237d0fc5ae2f3d7663c779fd7b025281/packages/transaction-controller/src/utils/prepare.ts?plain=1#L48

```ts
function getCommonConfiguration(chainId: Hex): Common {
const customChainParams: Partial = {
chainId: parseInt(chainId, 16),
defaultHardfork: HARDFORK,
};

return Common.custom(customChainParams, {
eips: [7702],
});
}
```

As a result this break our chain for certain transaction types
For example this Hardfork integrate EIP-3860 that defines a `maxInitCodeSize` that is too low for our chain

### Expected behavior

There should be an option to configure the chain and define what fork / EIP it support

### Screenshots/Recordings

_No response_

### Steps to reproduce

1. Go to https://remix.polkadot.io/ (our Remix fork for Polkadot)
2. Build https://wizard.openzeppelin.com/#erc20
3. Deploy

### Error messages or log output

```shell
Notice that the contract fails to deploy with

creation of MyToken errored: Error occurred: the initcode size of this transaction is too large: it is 82059 while the max is 49152.
```

### Detection stage

In production (default)

### Version

12.15.2

### Build type

None

### Browser

Chrome

### Operating system

MacOS

### Hardware wallet

_No response_

### Additional context

_No response_

### Severity

_No response_

Start with packages/transaction-controller/src/utils/prepare.ts, especially getCommonConfiguration and its Common.custom call, then reproduce the deployment failure through the linked Remix flow. Trace how the hardfork and EIP configuration reaches transaction preparation; done means the chain can configure supported forks or EIPs without applying an incompatible initcode limit.

Written by the indexing model from the issue text.