feat: Add Discord Bot for Activity Tracking

[PeterOche]

feat: Add Discord Bot for Activity Tracking

Closes: #77

This pull request introduces a new discord-bot service to track user activity within the Discord server. The bot listens for user messages and records corresponding "activity events" into the PostgreSQL database, laying the foundation for a future points and rewards system.

Key Features Implemented:

• New discord-bot Service: A standalone TypeScript service built with Node.js and the discord.js library.
• Message Tracking: Listens to messageCreate events and records them as activity points.
• Database Integration: Adds a new activity_events table to the existing PostgreSQL database. A migration script is included.
• Rate Limiting: Implements a simple in-memory rate limiter to prevent spam (default: 10 messages/user/minute).
• Configuration: Fully configurable via a .env file, with schema validation using Zod.
• Docker Integration: The new service is integrated into the existing docker-compose.yml for easy setup and deployment.
• Robustness: Includes structured logging with Pino, graceful shutdown handling, and comprehensive error management.

How to Test:

1. Create .env file: In the discord-bot directory, copy env.example to .env and fill in your Discord Bot Token, App ID, and Server (Guild) ID.
2. Enable Gateway Intent: In the Discord Developer Portal for your bot, navigate to the "Bot" tab and enable the "Message Content Intent" under "Privileged Gateway Intents".
3. Start Database:

   docker-compose up postgres -d

4. Run Migration:

   psql postgresql://guild_user:guild_password@localhost:5433/guild_genesis -f discord-bot/migrations/001_create_activity_events.sql

5. Start the Bot:

   cd discord-bot
   npm run dev

6. Invite & Verify: Invite the bot to your Discord server. Send a message in a channel and confirm that the terminal logs an "Activity event created" message.

[joelamouche]

Overall great job!

I have a few comments

[joelamouche]

probably "the-guild-discord-bot"

[PeterOche]

i have made the changes you requested @joelamouche. Kindly review

[joelamouche]

Very nice!

[joelamouche]

Nice work @PeterOche ! Don't hesitate to create a profile on theguild.dev to get badges for this task, or sharing twitter profile if you want some promotion 🚀