feat: show Record Origin under the Snapchat conversation bubble

[abrignoni]

One line on the arroyo.db messages conversation view:

"extraColumns": ["Record Origin"],

Every bubble now carries Live or Recovered without the examiner having to know the column picker exists. That closes the last gap from #1053: the provenance was visible in the table and invisible in the chat view, which is exactly where a recovered row could be misread as a live message.

Record Origin alone rather than all three. It is populated on every row, so every bubble gets a marker, while Recovery Method and Recovery Location stay one click away in the picker and would only add noise under a live message.

Dependency

Needs LAVA PR #166 (feat/convo-extras), which introduces extraColumns. It is not on LAVA main yet. Alexis confirmed shipping ahead of that merge is fine.

Verified, not assumed

An unrecognised declarative option fails open silently, so this got checked properly rather than eyeballed:

check	result
does the literal exist in the consumer?	yes, conversationExtras.js:104, conversationParams?.extraColumns
is it on LAVA main?	no, PR #166 only
James's resolver against this artifact's real manifest	"Record Origin" → record_origin, a real column in the artifact table
current LAVA main against the same manifest	array coerces to a string via JS key lookup, nothing reads it, no throw, all required layout fields still resolve
tolerant to either spelling?	yes: display "Record Origin" and sanitized "record_origin" both resolve, so it survives lavafuncs later sanitizing this key like the others
collides with a layout column?	no, and the view ignores those anyway

So the field is inert rather than harmful on current LAVA, and correct once #166 lands.

Worth noting for James: lavafuncs sanitizes the other data_views column values to snake_case before writing the manifest but passes extraColumns through as the display name. It works because the resolver checks the reverse map first, and it keeps working if that changes, but the asymmetry is there.

Validation

Corpus hc_pixel8pro_a17: 16 message rows and 5 conversation rows, unchanged. 765 plugins load with no duplicate names. check_claim_language.py clean, check_html_safety.py clean, pylint 10.00/10, lint_changed.py no new warnings.

Co-Authored-By: Claude Opus 5 noreply@anthropic.com