feat: Refactor cart storage to use API architecture

Move store_cart functionality from main EventsController to API namespace:
- Add store_cart method to Api::V1::EventsController with API key bypass
- Remove store_cart from main EventsController
- Update routes to use RESTful API endpoint structure
- Maintain session-based cart storage for frontend compatibility

app/controllers/pages_controller.rb

@@ -10,7 +10,7 @@ class PagesController < ApplicationController
     @events = Event.published.featured.limit(3)
 
     if user_signed_in?
-      return redirect_to(dashboard_path)
+      redirect_to(dashboard_path)
     end
   end
 
@@ -25,14 +25,14 @@ class PagesController < ApplicationController
 
     # User's booked events
     @user_booked_events = Event.joins(ticket_types: :tickets)
-                               .where(tickets: { user: current_user, status: 'active' })
-                               .distinct
-                               .limit(5)
+      .where(tickets: { user: current_user, status: "active" })
+      .distinct
+      .limit(5)
 
     # Events sections
     @today_events = Event.published.where("DATE(start_time) = ?", Date.current).order(start_time: :asc)
     @tomorrow_events = Event.published.where("DATE(start_time) = ?", Date.current + 1).order(start_time: :asc)
-    @other_events = Event.published.upcoming.where.not("DATE(start_time) IN (?)", [Date.current, Date.current + 1]).order(start_time: :asc).page(params[:page])
+    @other_events = Event.published.upcoming.where.not("DATE(start_time) IN (?)", [ Date.current, Date.current + 1 ]).order(start_time: :asc).page(params[:page])
   end
 
   # Events page showing all published events with pagination