Fix delegate info methods to return correct values

[Riccardo-RG]

Fixes #2564

Fix the issue with bt_decode.DelegateInfo.decode_vec in bittensor/core/chain_data/delegate_info.py to handle the decoding of vec_u8 correctly.

• Add a new method from_vec_u8 to decode vec_u8 and return a DelegateInfo object.
• Update the list_from_vec_u8 method to correctly decode vec_u8 and return a list of DelegateInfo objects.
• Ensure that total_daily_return and return_per_1000 are correctly decoded and returned.

Update bittensor/core/chain_data/delegate_info_lite.py to handle type conversions and ensure correct data types.

• Add a new method from_raw_data to create a DelegateInfoLite instance from raw data with proper type conversions.
• Ensure that registrations and validator_permits are lists of integers.
• Ensure that take is rounded to 6 decimal places and nominators, return_per_1000, and total_daily_return are integers.

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[thewhaleking]

You've got some failing tests. Please fix those and I'll have a review.

[Riccardo-RG]

Sorry i hope to get more familiar with the project in the next day and to offer a valid contribution

You've got some failing tests. Please fix those and I'll have a review.

[thewhaleking]

Hey @Riccardo-RG,
I'm looking at this, and I don't really see any changes, besides the from_raw_data, but because it's a dataclass, is this necessary? The changes to the *from_vec_u8 methods don't appear to actually change anything. I could be missing something here though.

The only change I see is that registrations are changed from the decoded data to a list of ints from the raw data. However, if we look at the decoder:

#[pyclass(get_all)]
#[derive(Decode, Encode, Clone, Debug)]
struct DelegateInfo {
    delegate_ss58: AccountId,
    take: Compact<u16>,
    nominators: Vec<(AccountId, Compact<u64>)>, // map of nominator_ss58 to stake amount
    owner_ss58: AccountId,
    registrations: Vec<Compact<u16>>, // Vec of netuid this delegate is registered on
    validator_permits: Vec<Compact<u16>>, // Vec of netuid this delegate has validator permit on
    return_per_1000: Compact<u64>, // Delegators current daily return per 1000 TAO staked minus take fee
    total_daily_return: Compact<u64>, // Delegators current daily return
}

We can see that the registrations are always going to be a Vec<Compact<u16>> (i.e. a list of ints).

Second thing I'll say is that we use the list for type annotations rather than typing.List, as this was only necessary pre-3.9 (which we don't support).