chore(tiles): retire the last tippecanoe builds

sql/migrate/retire_tippecanoe_tilesets.sql

@@ -0,0 +1,51 @@
+-- Retire the last tippecanoe tile builds (2026-08-06).
+--
+-- facade_scan and the four incident tilesets are now served dynamically by
+-- the Martin tileserver from maplayer function sources — see
+-- sql/model/create_facade_scan_tiles.sql and create_incident_tiles.sql.
+-- WebFront #290 and FunderMapsReport #65 point at tiles.fundermaps.com.
+--
+-- Measured cost of the builds this removes (flow job 019fcdee, 2026-08-05):
+--   incident_district      26.5 min   155,335 Spaces objects   1,016 features
+--   incident_neighborhood  11.5 min    67,346 objects          1,530 features
+--   incident                2.0 min     7,373 objects          2,728 features
+--   facade_scan             1.0 min     1,090 objects          3,202 features
+--   incident_municipality   0.5 min       497 objects            298 features
+-- ~40 of the ~50 min process_mapset spent nightly; the whole flow should drop
+-- from ~101 min to ~60 min.
+--
+-- ONLY generate_tileset flips. enabled and upload_dataset MUST stay true:
+--   - enabled=false makes processOne skip the bundle entirely (the both-flags-
+--     off early return added in #53), which would also kill the GPKG export.
+--   - upload_dataset drives the nightly export to s3://fundermaps-data/mapset/,
+--     the permanent history of the static model. Do not turn it off.
+-- After this, no bundle generates tiles; process_mapset is a pure GPKG
+-- exporter and tippecanoe is unused by the nightly flow.
+--
+-- Rollback: set generate_tileset = true for these five and revert the two
+-- frontend PRs. The static tiles are still in fundermaps-tileset (stale from
+-- whenever the purge happens) until they are deleted.
+
+UPDATE maplayer.bundle
+   SET generate_tileset = false
+ WHERE tileset IN (
+    'facade_scan',
+    'incident',
+    'incident_district',
+    'incident_municipality',
+    'incident_neighborhood'
+ );
+
+-- Guard: this migration must not have disabled a bundle or stopped an export.
+DO $$
+DECLARE
+    broken integer;
+BEGIN
+    SELECT count(*) INTO broken
+      FROM maplayer.bundle
+     WHERE NOT enabled OR NOT upload_dataset;
+    IF broken > 0 THEN
+        RAISE EXCEPTION
+            'refusing: % bundle row(s) lost enabled or upload_dataset', broken;
+    END IF;
+END $$;