refactor: index preprocessed process arguments directly

std/process/process.hon

@@ -5,7 +5,7 @@ Init :: struct {
     args Args
 }
 
-#! borrows the argument pointer array and its zero-terminated strings; owns no storage.
+#! borrows argument slices and their zero-terminated strings, valid until main returns.
 Args :: struct {
-    values [][*;0]u8
+    values [][;0]u8
 }