Refactor and improve

server-rs/src/features.rs

@@ -45,8 +45,7 @@ pub struct EnumFeatureGroup {
     pub features: &'static [EnumFeatureConfig],
 }
 
-/// Columns in parquet that are neither numeric features nor enum features.
-/// These are silently skipped during schema validation.
+/// Columns in parquet that are not filterable
 pub const IGNORED_COLUMNS: &[&str] = &[
     "lat",
     "lon",
@@ -792,3 +791,17 @@ pub fn bounds_for(name: &str) -> Option<&'static Bounds> {
         .find(|feature| feature.name == name)
         .map(|feature| &feature.bounds)
 }
+
+/// Canonical display order for POI category groups.
+/// The server will panic at startup if the data contains groups not in this list or vice versa.
+pub const POI_GROUP_ORDER: &[&str] = &[
+    "Public Transport",
+    "Amenity",
+    "Building",
+    "Craft",
+    "Healthcare",
+    "Leisure",
+    "Office",
+    "Shop",
+    "Tourism",
+];