- use-keybinds: bail out of the global keydown dispatcher while an IME
composition is active. Windows Chinese IMEs use Ctrl+, as their
punctuation toggle, which also matched nav.settings and navigated away
mid-word — destroying the unsent composer draft (#41079).
- use-composer-draft.test: regression-pin the unmount-stash/remount-restore
contract so route navigation (Settings) can never again drop an unsent
draft with the React tree.
- use-composer-actions.test: the bounded-preview pipeline keys attachments
to the durable path and resolves thumbnails asynchronously; the dropped-
screenshot test now asserts the durable-path contract instead of the
retired full-res previewUrl field.
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