`/pr-flow` §5 said what to capture and where to put it, but nothing about the
viewport it is captured at — so screenshots clipped their contents, most
visibly the Monitor sidebar, and #2234 needed three full re-captures.
Split §5 into capture / read-back / upload, and add:
- A named capture size, 1280x900 full page — the viewport the web smokes
already use, so shots are comparable across PRs.
- The trap that widening the window does not widen the Monitor sidebar, with
both levers: seeding `inspector.monitor.width` before load, or driving the
ARIA separator with ArrowLeft.
- A no-clipping read-back before uploading.
- The crossfade wait and the focus-marking mechanic, previously unwritten.
The upload mechanics are unchanged, just moved under §5c.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017nLLLTGc37hQiC8s3mNyhq
Signed-off-by: cliffhall <cliff@futurescale.com>
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