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# a11y callout -- input staging popover

a11y type callout -- input staging approval popover before typing. Shows text-to-type in retro green bubble, tail points to caret/text-end in target element. User presses O to approve; typing fires from callout (PendingAction delegate).

user/developer

## Steps

1. [POSITIONING] Body placed UPPER-LEFT of targ...
2. [APPROVAL FLOW] A11yCommand sets PendingActi...
3. [KEY FIELDS] PendingContent=text in body, Pe...
4. [AUTO-SCREENSHOT] On Loaded: TakeElementScre...
5. [DISPLAY] TextBlock+ScrollViewer (not TextBo...
6. [POSITIONING v2] Body anchored 150px upper-l...
7. Verified 2026-04-26: test-a11y-invoke-32770-...
8. Verified 2026-04-26: test-a11y-restore-focus...
9. Verified 2026-04-26: test-a11y-invoke-blocke...