phase: 20.49 COMPLETE; 20.50 Flow+String minimal reps; 20.51 selfhost v0/v1 minimal (Option A/B); hv1-inline binop/unop/copy; docs + run_all + CURRENT_TASK -> 21.0

examples/path_min.hako

@@ -0,0 +1,8 @@
+static box Main {
+  main() {
+    local p = new PathBox()
+    local j = p.join("/usr", "bin")
+    local b = p.basename(j)
+    return b
+  }
+}