Record the two open Iris extraction PRs in the handoff

docs/IRIS_EXTRACTION_HANDOFF.md

@@ -10,9 +10,13 @@ it as a permanent decisions log; remove it after the extraction is complete.
 - The agent-owned fork is `git@git.arirex.me:iris-ai/iris.git`.
 - Canonical `main` is at `0f6a28b4dd20d1f6bd745271c5f0926028c8fdb6`,
   the squash merge of PR #10.
-- There are no open Iris pull requests.
+- **Updated 2026-09-13:** two independent PRs are open against canonical
-- No implementation work was started after PR #10. The only subsequent work
+  `main`, neither reviewed yet -- #11 (`split/11-texture-bindings`, the
-  is this handoff.
+  glyph atlas as an array texture and standalone images with their own bind
+  groups) and #12 (`split/12-pointer-routing`, a scroll falling through a
+  hovered button). Both branch from `0f6a28b` and touch disjoint paths, so
+  either can merge first. Their worktrees are `/home/bob/repos/iris-pr11`
+  and `/home/bob/repos/iris-pr12`.
 - `/home/bob/repos/ai-app-2` is on `rustify` at `50d214e` before this handoff
   commit. Its worktree was clean.
 - `/home/bob/repos/iris-pr10-text` is clean at `983e15c`, the merged PR head.
@@ -119,6 +123,12 @@ GET /api/v1/repos/iris/iris/issues/{number}/comments
 | #9 | Preserve primitive-count recursion (`b90c855`) |
 | #10 | Move text layout and rendering to Parley (`0f6a28b`) |
 
+`3f92894` and `bf49525` were the starting points for #11 and #12
+respectively. Neither applied cleanly: the base has moved under both, so
+each was rebuilt rather than transplanted. Of the three commits named under
+"How to choose the next slices", only `6671194` (widget draw size) is still
+unclaimed.
+
 The URLs are `https://git.arirex.me/iris/iris/pulls/{number}`.
 
 ## PR #10 details worth preserving