Update prometheus metric name

CHANGELOG.md

@@ -19,9 +19,9 @@ To set a custom tile URL, go to the user settings and set the `Maps` section to
 - If you have Prometheus exporter enabled, you can now see a `ruby_dawarich_map_tiles` metric in Prometheus, which shows the total number of map tiles loaded. Example:
 
 ```
-# HELP ruby_dawarich_map_tiles
-# TYPE ruby_dawarich_map_tiles gauge
-ruby_dawarich_map_tiles 99
+# HELP ruby_dawarich_map_tiles_usage
+# TYPE ruby_dawarich_map_tiles_usage counter
+ruby_dawarich_map_tiles_usage 99
 ```
 
 # 0.24.0 - 2025-02-10

app/services/maps/tile_usage/track.rb

@@ -8,7 +8,7 @@ class Maps::TileUsage::Track
   def call
     metric_data = {
       type: 'counter',
-      name: 'dawarich_map_tiles',
+      name: 'dawarich_map_tiles_usage',
       value: @count
     }
 

spec/services/maps/tile_usage/track_spec.rb

@@ -18,7 +18,7 @@ RSpec.describe Maps::TileUsage::Track do
       expect(prometheus_client).to receive(:send_json).with(
         {
           type: 'counter',
-          name: 'dawarich_map_tiles',
+          name: 'dawarich_map_tiles_usage',
           value: tile_count
         }
       )