Trino out of the code; commit messages name bands and rules

The rename step in init.sh and the guard in deploy/lib.sh are gone. README's
procedure is now "Removing the old project"; it keeps the old names until it
has run on the server. Migrations stay here (open point 8), and their README
says so. AGENTS.md adds the commit-message rule. Not deployed: live still runs
Trino.

Bands: 4 (Superset), persistence (docs). Rules: 2.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

petrolyst-insights/dashboards/atoma/SPEC.md

@@ -16,8 +16,7 @@ them in Superset with the filter column.
 
 **Datasets.** The `public.v_*` views of
 `stacks/fuel-monitoring/fuel-db/migrations/0003_bi_views.sql`, read from fuel-db directly (database
-`fuel`, schema `public`) as the read-only role `fuel_ro`. *Until 29 Oct 2026 Superset read them
-through Trino as `fuel.public`; Trino was removed then.*
+`fuel`, schema `public`) as the read-only role `fuel_ro`.
 
 **Design and rationale** live in the fuel-monitoring corpus, in
 `.context/plans/2026-10-24-fuel-db-baseline-dashboard.md`:
@@ -259,7 +258,7 @@ across methods or generator sets. The site's L/h figure itself comes only from a
 (petrolyst-platform `views/src/shared/deepLink.ts`, retired) from its iframe address: the
 dashboard path, the Site filter's id and the tab. The Petrolyst app uses the same rison shape for
 the Site filter's preset (`app/src/app/core/site-filter.ts`). The rison shape is the one the sites
-list used until 28 Oct, confirmed in P2, and the view's tests compared it with that list's Trino
+list used until 28 Oct, confirmed in P2, and the view's tests compared it with that list's
 output:
 
 ```
@@ -409,7 +408,7 @@ Run in P2 against a local Superset, and repeated as a smoke test in P3.
 
 ## 8. P2 results (local, 24 Oct 2026)
 
-Local Superset 6.1.0 image built from this repository, Trino 484, fuel-db with migrations
+Local Superset 6.1.0 image built from this repository, fuel-db with migrations
 0001–0003 and the corpus data loaded; browser checks in headless Chrome.
 
 | Check | Result |