Subscan Q3/Q4 2024 Funding Proposal: Basic service fee & Development cost for the Polkadot, Westend, and Rococo Ecosystems）

Treasury

Subscan seeks funding for Q3/Q4 2024 to support infrastructure maintenance and development across 14 Polkadot ecosystem networks. They’ve improved cost predictability with a refined storage-based pricing model and focused on enhancing NFTs, APIs, and security in Q3, with Q4 efforts aimed at cross-chain data and visualization. Subscan aims to reduce reliance on treasury funding through optimizations, new revenue streams, and community-driven features, ensuring transparency, stability, and continued ecosystem support.

Propose and approve a spend of treasury funds.

## Dispatch Origin

Must be [`Config::SpendOrigin`] with the `Success` value being at least
`amount` of `asset_kind` in the native asset. The amount of `asset_kind` is converted
for assertion using the [`Config::BalanceConverter`].

## Details

Create an approved spend for transferring a specific `amount` of `asset_kind` to a
designated beneficiary. The spend must be claimed using the `payout` dispatchable within
the [`Config::PayoutPeriod`].

### Parameters
- `asset_kind`: An indicator of the specific asset class to be spent.
- `amount`: The amount to be transferred from the treasury to the `beneficiary`.
- `beneficiary`: The beneficiary of the spend.
- `valid_from`: The block number from which the spend can be claimed. It can refer to
  the past if the resulting spend has not yet expired according to the
  [`Config::PayoutPeriod`]. If `None`, the spend can be claimed immediately after
  approval.

## Events

Emits [`Event::AssetSpendApproved`] if successful.

- **Problem Statement:** Refining pricing models for Subscan's infrastructure costs to enhance fairness, predictability, and transparency.
- **Significance:** Improved pricing model based on storage usage correlates more reliably with total costs, reducing volatility and estimation inaccuracies.
- **Proposed Solution:** Pricing based on storage usage, with different tiers and automatic upgrades, to ensure smooth and efficient operations.
- **Expected Outcomes:** Enhanced platform reliability, improved user experience, and reduced costs through targeted optimizations.

#1366 Subscan Q3/Q4 2024 Funding Proposal: Basic service fee & Development cost for the Polkadot, Westend, and Rococo Ecosystems）