This treasury proposal is for the fourth milestone of the - Non-Custodial P2P Trading for KSM proposal.

Details of the proposal can be found here: https://docs.google.com/document/d/1m_lBnw6zrkW980zkZhHEJ_Ny6eEUAJk9ey0GSmevleU/edit?usp=sharing

Milestone 1, 2 and 3 have now been completed.

Commonwealth thread: https://commonwealth.im/kusama/proposal/discussion/415-treasury-proposal-noncustodial-p2p-trading-for-ksm

Original Riot announcement: https://riot.im/app/#/room/#kusama:matrix.parity.io/$Ud1f2HzQuTDV3tsTVu1bp2ozFQHcX0qo_vAPztPJB4w


**Milestone 1: Reference Implementation**

https://github.com/LocalCoinSwap/kusama-reference-implementation/blob/master/Kusama%20reference.ipynb 
 

**Milestone 2: Python handler class and Python library**

Package source code:
https://github.com/LocalCoinSwap/kusama-utils 
 
Tests with 100% coverage of the library:
https://github.com/LocalCoinSwap/kusama-utils/tree/master/tests 
 
Documentation:
https://localcoinswap.github.io/kusama-utils/ 
 
Official Python package in the PyPi library:
https://pypi.org/project/ksmutils/ 


**Milestone 3: Kusama non-custodial API**

API: 
https://hub.docker.com/r/localcoinswap/kusama-api 

Automated setup documentation:
https://github.com/LocalCoinSwap/kusama-api/blob/master/docs/setup/2.-prod-deployment.md 

Questions or feedback is always welcomed.

We are excited to move on to the next milestone!

Approve a proposal. At a later time, the proposal will be allocated to the beneficiary
and the original deposit will be returned.

May only be called from `T::ApproveOrigin`.

# <weight>
- Complexity: O(1).
- DbReads: `Proposals`, `Approvals`
- DbWrite: `Approvals`
# </weight>

Problem Statement & Audience:
- DotScanner.com is expensive to host and the proposal aims to integrate Kusama support into the platform.
- The intended audience is the Polkassembly Council.

Significance:
- Integrating Kusama support into DotScanner.com would enhance its functionality and provide support for Kusama users.
- The proposal mentions that the cost of hosting would likely double with the addition of Kusama support.

Proposed Solution:
- The proposal suggests beginning development with milestones 0 & 1 to integrate Kusama support into DotScanner.com.

Expected Outcomes & Value proposition:
- The expected outcome is the successful integration of Kusama support into DotScanner.com.
- The value proposition is to provide enhanced functionality for Kusama users and expand the capabilities of DotScanner.com.

#173 Non-Custodial P2P Trading for KSM - Milestone 4