MCP: set profile

gistfile1.txt

sequenceDiagram 
    autonumber
    participant U as User
    participant E as Browser Extension
    participant M as MCP App
    participant B as MCP B/E
    participant T as Twitter
    
    U-)E: Trigger "Set Profile Picture"
    E-)M: Redirect to MCP App
    M-)B: Fetch Available NFTs
    M-)M: User choose a NFT
    alt Get permission from Twitter (R+W)
        B-)U: give permission
    else
        B-)U: user reject
    end 
    M-)B: Trigger "Set Profile process"
    alt Sanity check (1)
        B-)T: Passing: Upload new Twitter profile picture
        note over B,T: user has ownership to chosen NFT. 
        T-)B: B/E record the "hash" of the profile picture
    else
        B-)M: Failing
    end