feat(cli): ludic deps --writes warns about writes through a local alias

A local bound straight from another module's global (let t =
thing_cur), or from such a local, is followed within its function, and
a write through its field or element is listed as a warning after the
counted writes. A reference from a function's result is not followed.
Reseed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

examples/modules/tangle/a/index.ludic

@@ -7,3 +7,7 @@ export function a_run() -> int {
 export function a_two() -> int {
   return 2
 }
+export function a_bump() -> void {
+  let r = b_rec
+  r.n = r.n + 1
+}