correct a stale untested list: two of its four entries already had tests

docs/workspace-panel-todo.md

@@ -978,8 +978,15 @@ they are marked below, because a dead-code list that is itself wrong is the wors
       `onClearApp` → `null`), but `setApp` is exported from the barrel. Fixed in the same commit.
       Two tests are deliberately written to the _current_ behaviour and marked `KNOWN GAP` so they fail
       the day it changes: a move drops `zoom` and `fitContent` (§5.3).
-      **Still untested:** the other eleven files of the framework — `WorkspaceView`, `WorkspaceRenderer`,
-      `PanelSlot`, `normalizeLayout`. §5.5's debounce lost-updates live there, not in `layout-utils`.
+      **The "still untested" list this line used to carry was stale by the time it was written, and two of
+      its four entries were wrong.** `normalizeLayout` is not a separate file — it lives in `layout-utils.ts`
+      and has nine tests of its own (identity-by-reference on a clean tree, `config` dropped along with the
+      app it belonged to, idempotence, nested repair, `null` always allowed). `WorkspaceRenderer` got eight
+      tests in `56ca411`. The Workspace directory is 76 tests across three files and green.
+      **Genuinely still untested: `WorkspaceView` and `PanelSlot`.** But note §5.5's lost updates are no
+      longer what makes that urgent — every mutation in `WorkspaceView` now goes through `onLayoutChange`
+      as an *updater*, never as a computed tree, which is the structural fix; a test there would be
+      guarding the fix rather than finding the bug. Checked, not assumed — `bun test src/workspaces/officerdev/src/components/Workspace/`.
 
 - [x] **A panel is told where it is, instead of being handed a key to reverse-engineer.** _(`dbe585f` +
       `717580f` + `585f234`, branch `agent-coordination-mvp`)_ — the first three items of §5.9. The