Adds the preview-only Playwright spec and config that produce the focus-view
screenshots, seeded with a relay post the agent makes mid-turn plus the
turn's final answer. Preview scaffolding on a throwaway branch, not
product code and not wired into CI.
Three things are asserted rather than assumed, because each one has a
failure mode that still yields a plausible-looking screenshot:
- the transcript really is the pinned `conversation` variant, so no shot
can silently be of the dense activity feed;
- the Sent row really carries the posted text. A backtick or `$` anywhere
in the seeded `--content` makes `extractBuzzCliInlineContent` return
null, and the row degrades to a bare "Sent messages" with no message in
frame. Measured, not theorised: the first draft of this spec seeded a
body with markdown backticks and captured exactly that empty row while
passing;
- the mid-flight tail really projects as `running`, read off
`data-step-state`. The running and settled glyphs are the same wrench,
so a settled tail would look entirely plausible in a still.
Each guard was falsified against a mutation that compiles: reintroducing
the backticked body fails the text assertion, and making a live-owned step
report `settled` fails the liveness assertion.
Co-authored-by: Bradley Axen <baxen@squareup.com>
Signed-off-by: Bradley Axen <baxen@squareup.com>
Signed-off-by: ss-dev-00 <a02c4e0850e5e612b4ddf95dbe2f5c56467cf27c6552203bc833ff438fb31971@buzz.block.builderlab.xyz>
Co-authored-by: Bradley Axen <baxen@squareup.com>
Signed-off-by: Bradley Axen <baxen@squareup.com>
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