chore: reset working tree (v0.5)

Temporary commit clearing working tree for v0.6 rebuild

tests/pid.rs

@@ -1,22 +0,0 @@
-use smarm::pid::Pid;
-
-#[test]
-fn pid_equality() {
-    assert_eq!(Pid::new(0, 0), Pid::new(0, 0));
-    assert_ne!(Pid::new(0, 0), Pid::new(0, 1));
-    assert_ne!(Pid::new(0, 0), Pid::new(1, 0));
-}
-
-#[test]
-fn pid_accessors() {
-    let p = Pid::new(42, 7);
-    assert_eq!(p.index(), 42);
-    assert_eq!(p.generation(), 7);
-}
-
-#[test]
-fn pid_debug_is_useful() {
-    let p = Pid::new(3, 5);
-    let s = format!("{:?}", p);
-    assert!(s.contains('3') && s.contains('5'), "got: {}", s);
-}