Add proper logging, make commands modularized, add new commands and add event handler

.env.dev.example

@@ -0,0 +1,13 @@
+TG_BOT_DISCORD_TOKEN=your-token-here
+
+# Database Configuration
+TG_BOT_POSTGRES_USER=postgres
+TG_BOT_POSTGRES_PASSWORD=changeme
+TG_BOT_POSTGRES_DB=tg_dev_srv_bot
+TG_BOT_DATABASE_URL=postgres://postgres:changeme@localhost:5432/tg_dev_srv_bot
+
+# Required for sqlx
+DATABASE_URL=postgres://postgres:postgres@localhost:5432/tg_dev_srv_bot
+
+# Logging configuration (trace, debug, info, warn, error)
+TG_BOT_LOG=info