Add partner AIsa metadata and logo

[AIsaPay]

Add AIsa https://aisa.one/ as a new partner in the x402 ecosystem.

Partner Information:

Name: AIsa
Description: A resource marketplace aggregating core assets such as LLMs, data APIs based on the HTTP 402 standard
Website: https://aisa.one/
Category: Services/Endpoints

Changes:

Added partner metadata in aisa-agent-paywall directory
Added AISA logo (aisa.png)

Server information on x402scan:

Server Name: AgengPayWall-402
Server URL: https://pay.lnpay.ai/
Server ID: b5605bff-0056-4823-a6e6-88dabbd783d7

[cb-heimdall]

🟡 Heimdall Review Status

Requirement	Status	More Info
Reviews	🟡 0/1	Denominator calculation Show calculation 1 if user is bot 0 1 if user is external 0 2 if repo is sensitive 0 From .codeflow.yml 1 Additional review requirements Show calculation Max 0 0 From CODEOWNERS 0 Global minimum 0 Max 1 1 1 if commit is unverified 0 Sum 1

[vercel[bot]]

@AIsaPay is attempting to deploy a commit to the Coinbase Team on Vercel.

A member of the Team first needs to authorize it.