4148df8fcb
The create-and-participate flow was driven in a real browser for the first time. It had been called correct by construction -- typecheck, build, reading -- and the probe found three defects none of those could see. Two open bugs, both major, both filed rather than worked around: signing up to your own event makes the NEXT connection fail outright (`ensureIdentity()` rejects inside the data layer's own inbox processing, 3/3, reproduced on a fresh origin and identity), and the participant count does not converge in the same session (2/2, 120 s and 75 s). Whether it converges at the next connection is recorded as UNKNOWN and unmeasurable, because the first bug stops the app from getting there. The doctrine defect is the one worth the trouble. `knowledge_build-pipeline` said production builds into `dist/`; `knowledge_deployment` said the container runs `bun run start` from `src/`. Both were written down, they contradicted each other, and the code followed the wrong one -- which is how a deployed app that could sign nobody in was shipped. The three paths now live in one table whose discriminating column is what is actually served: dev `src/`, production `src/`, and `dist/` served by nothing at all. A build artefact nobody serves is a trap for the next reader who assumes otherwise. The probe method itself is written down: the suite cannot run, a targeted probe can, and the difference is worth knowing before concluding that nothing is measurable. Stated once where a reader meets it: honest steps do not add up to an honest flow. Every gesture in the sign-up reports correctly, and the user is still told they participate while the count never moves and the next connection fails.