docs/RUST.md: who owns the killed agents' diff, and the stale worktree note

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

docs/RUST.md

@@ -610,7 +610,17 @@ closes it.
 
 - [x] Test rig, layers 1 and 2 ("Three test layers" below), landed 2026-09-07.
 - [ ] Fling parity with Compose, and the phone's keyboard push-up, with
-  insets shown in the diagnostics overlay. Running, in a worktree.
+  insets shown in the diagnostics overlay. The worktree note here was
+  stale by 2026-09-07 night: no worktree exists and the keyboard half
+  is ticked in IRIS_TODO's night entry. What remains is the impulse
+  estimator item below.
+- **Orchestrator note, 2026-09-07 late**: the tree was found holding a
+  non-compiling diff from two killed agents (catch-a-fling in
+  `sense.rs`/`selection.rs`; shaped masks in the render files). One
+  opus agent owns splitting and landing both (catch-a-fling first);
+  one sonnet agent owns report hygiene and the bench header in
+  `bench_client.rs` and client-core's log ring. If both boxes below
+  are still open and nothing is running, that work was cut off again.
 - [x] Rows at the transcript's top edge: culled too early in one state,
   drawn through the header in the other (docs/IRIS_TODO.md, 2026-09-07).
   Done 2026-09-07, e922b73 + d507ae4; the root causes and the test names