fix: Discord bot channel message not sending due to missing guildId

[adityajha2005]

Previously, the bot failed to send tip announcement messages in the Discord channel due to a missing required parameter.

Problem
When a tip was sent, the bot was expected to announce it like this:
@worker #117 @ Gib.Work just sent 0.2 USDC to @d0t!
However, these messages were not appearing in the channel.

Upon investigation, I discovered that the Discord bot’s API endpoint required a guildId parameter, which was not being provided.

Solution
->Added the missing guildId parameter to the message request
->Configured necessary environment variables in the config file

Added validation to ensure the presence of ANNOUNCE_CHANNEL_ID and NEXT_PUBLIC_GUILD_ID environment variables.

[vercel]

@adityajha2005 is attempting to deploy a commit to the gibwork Team on Vercel.

A member of the Team first needs to authorize it.

[shivaji43]

@adityajha2005
This change will only be applied to gibwork server , The bot is now a generalised bot i.e any server can install the bot and use the commands
Hardcoding the channel Id will cause every servers' /tip command message to land in gibwork general channel

Instead

• Add a new column in servers' table channel_id
• change the /server-setup command to take input a channel id
• fetch channel_id associated to server_id by passing server_id in query params of the webapp while tipping and send message in that channel

[shivaji43]

@adityajha2005 hey I made a PR here #64 thanks for giving it a try