FEATURE: Track API and user API requests (#19186)

Adds stats for API and user API requests similar to regular page views.
This comes with a new report to visualize API requests per day like the
consolidated page views one.

app/models/concerns/reports/consolidated_api_requests.rb

@@ -0,0 +1,40 @@
+# frozen_string_literal: true
+
+module Reports::ConsolidatedApiRequests
+  extend ActiveSupport::Concern
+
+  class_methods do
+    def report_consolidated_api_requests(report)
+      filters = %w[
+        api
+        user_api
+      ]
+
+      report.modes = [:stacked_chart]
+
+      tertiary = ColorScheme.hex_for_name('tertiary') || '0088cc'
+      danger = ColorScheme.hex_for_name('danger') || 'e45735'
+
+      requests = filters.map do |filter|
+        color = filter == "api" ? report.rgba_color(tertiary) : report.rgba_color(danger)
+
+        {
+          req: filter,
+          label: I18n.t("reports.consolidated_api_requests.xaxis.#{filter}"),
+          color: color,
+          data: ApplicationRequest.where(req_type: ApplicationRequest.req_types[filter])
+        }
+      end
+
+      requests.each do |request|
+        request[:data] = request[:data].where('date >= ? AND date <= ?', report.start_date, report.end_date)
+          .order(date: :asc)
+          .group(:date)
+          .sum(:count)
+          .map { |date, count| { x: date, y: count } }
+      end
+
+      report.data = requests
+    end
+  end
+end