Buy route `/buy` shows parameter errors when accessed directly

[NiKHiLkr23]

When users navigate directly to https://verify-bot.gib.work/buy without required query parameters, they see an error message about missing token information.

Current Behavior:

• Direct access to /buy shows error: "Required token information (tokenMint) is missing in the URL. Required amount (requiredRawAmount) is also missing."
• Page loads but all functionality is broken

Expected Behavior:

• Should validate parameters on page load
• Should show appropriate error page for missing parameters
• Should provide guidance on how to get a valid buy link
  or
• WORK can be hardcoded for now