Document audit findings and verification results

scripts/sync-osm-poi.ts

@@ -63,8 +63,14 @@ type PoiCategoryKey =
  */
 const CATEGORY_QUERIES: Record<PoiCategoryKey, string> = {
   // ── Education ─────────────────────────────────────────────────────────
-  SCHOOL_PRIMARY:    '["amenity"="school"]["isced:level"~"^(primary|0|1)$"]',
-  SCHOOL_SECONDARY:  '["amenity"="school"]["isced:level"~"^(secondary|2|3)$"]',
+  // OSM Vietnam rarely tags `isced:level`, so we accept everything tagged
+  // `amenity=school` and let `school:type=primary|secondary` (when
+  // present) drive the post-import categorisation. The two SCHOOL_*
+  // selectors here intentionally overlap on plain `amenity=school` —
+  // we de-duplicate on `osmId` UNIQUE so it's a no-op on the second
+  // pass.
+  SCHOOL_PRIMARY:    '["amenity"="school"]',
+  SCHOOL_SECONDARY:  '["amenity"="school"]["school:type"~"secondary|gymnasium|high"]',
   UNIVERSITY:        '["amenity"~"^(university|college)$"]',
   // ── Health ────────────────────────────────────────────────────────────
   HOSPITAL:          '["amenity"="hospital"]',