Get songs endpoint (#162)

* Added test_migrations directory

* Added skeleton endpoint to get songs

* Code formatting

* Added more code

* Added TODO

* Code formatting

* Updated album in album json file

* Changing directory name

* Test refactoring

* Forgot to include this

* Added test for getting songs and added function for test_migrations

* Adding test migrations

* Removing placeholder

* Renamed

* Renamed

* Fixed what caused test failure

* Created migration with cli command

Creating test_migrations/20250725213448_migration_name.sql

* Migration changes

* Removing migration

* More migration changes

* Made endpoint available

* Migration changes

* Got the test to work

* Cleaned up test

* Code formatting

* More cleanup

* Version bump

src/callers/mod.rs

@@ -16,6 +16,7 @@ pub mod endpoints {
     pub const QUEUECOVERARTDATAWIPE: &str = "/api/v2/coverart/queue/data/wipe";
 
     pub const CREATESONG: &str = "/api/v2/song";
+    pub const GETSONGS: &str = "/api/v2/song";
     pub const CREATECOVERART: &str = "/api/v2/coverart";
 }