Updated database code to see if it aligns with workflow requirements

src/database.rb

@@ -19,7 +19,11 @@ require 'pg'
 class Database
     def initialize
         # Connect once when the bot starts
-        @conn = PG.connect(dbname: 'fgbot_db')
+        @conn = PG.connect(
+            host: ENV['DB_HOST'] || 'localhost',
+            dbname: ENV['DB_NAME'] || 'fgbot_db'
+            user: ENV['DB_USER'] || 'postgres'
+        )
 
         init_tables
     end