updated flash privilege settings and improved token support

[UjjwalGupta49]

updated privilege settings for flash.trade

Changes Made

This PR adds the following changes:

• updated the open and close positions to read privilege from .env and default to NONE
• added support for supported Token update based on flash-idk

Implementation Details

• updated /tools/flash_open_order and /tools/flash_close_order
• updated /utils/flashUItils to return the privilege set in .env

Transaction executed by agent

Example transaction:
open trade: https://explorer.solana.com/tx/RQh483VqoB8cwekPvpqNjQMydR1E9wwev3xiVXEJJfRdE2ozg3TjYTHQHJrjMB1EUhpbYhmX3dzfKuqdMMDdz61

close trade:
https://explorer.solana.com/tx/3a4XfP67qF5vqhKf2DrEVQgAqVNko6kfta9UZW35jZWf5Y8voM3emTjJZ7XGjD5u8A9TQJRTrbozDBq15D3B4w5x

Prompt Used

open trade: open a 10x leveraged trade on flash trade with 10 USD of collateral using SOL long
close trade: close the existing SOL long trade with 10x leverage on flash trade

Additional Notes

Checklist

• [✅] I have tested these changes locally
• [✅ ] I have updated the documentation
• [✅] I have added a transaction link
• [✅] I have added the prompt used to test it

[thearyanag]

instead of taking it from env here, can we shift this to config object present here

solana-agent-kit/src/agent/index.ts

Line 93 in 249cd70

public config: Config;

so people know how to explicitly pass it