Checkpoint all changes

server-rs/src/state.rs

@@ -1,5 +1,14 @@
+use rustc_hash::FxHashMap;
+use serde::Serialize;
+
 use crate::data::{POIData, PropertyData};
-use crate::index::GridIndex;
+use crate::grid_index::GridIndex;
+
+#[derive(Serialize, Clone)]
+pub struct POICategoryGroup {
+    pub name: String,
+    pub categories: Vec<String>,
+}
 
 pub struct AppState {
     pub data: PropertyData,
@@ -9,4 +18,16 @@ pub struct AppState {
     pub h3_cells: Vec<Vec<u64>>,
     pub poi_data: POIData,
     pub poi_grid: GridIndex,
+    /// Precomputed JSON key names: "min_{feature_name}" for each numeric feature
+    pub min_keys: Vec<String>,
+    /// Precomputed JSON key names: "max_{feature_name}" for each numeric feature
+    pub max_keys: Vec<String>,
+    /// Precomputed JSON key names: "min_{enum_name}" for each enum feature
+    pub enum_min_keys: Vec<String>,
+    /// Precomputed JSON key names: "max_{enum_name}" for each enum feature
+    pub enum_max_keys: Vec<String>,
+    /// Precomputed POI category groups (sorted)
+    pub poi_category_groups: Vec<POICategoryGroup>,
+    /// Precomputed map from enum feature name to index in data.enum_features
+    pub enum_name_to_idx: FxHashMap<String, usize>,
 }