Update song queue flow (#142)

* Added new status and made changes to song queue status code

* Saving changes

* Got a test working

* Got another test working

* Got the last test working

* Code cleanup

* More minor changes

* More minor changes

* Minor changes

migrations/20250420185217_init_migration.sql

@@ -5,7 +5,7 @@ CREATE EXTENSION IF NOT EXISTS pgcrypto;
 CREATE TABLE IF NOT EXISTS "songQueue" (
     id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
     filename TEXT NOT NULL,
-    status TEXT CHECK (status IN ('pending', 'processing', 'done')),
+    status TEXT CHECK (status IN ('pending', 'ready', 'processing', 'done')),
     data BYTEA NULL
 );