feat: add expo mobile application source code

mobile/utils/actionTracker.ts

@@ -0,0 +1,40 @@
+import { storage } from './storage';
+import * as StoreReview from 'expo-store-review';
+
+const ACTIONS_COUNT_KEY = 'user_actions_count';
+const LAST_PROMPT_DATE_KEY = 'last_review_prompt_date';
+
+export const ActionTracker = {
+  /**
+   * Increment action count and check if we should show review prompt
+   */
+  async trackAction(minActions: number = 10, enabled: boolean = true) {
+    if (!enabled) return;
+
+    try {
+      const currentCountStr = await storage.get(ACTIONS_COUNT_KEY);
+      const currentCount = parseInt(currentCountStr || '0', 10) + 1;
+      
+      await storage.save(ACTIONS_COUNT_KEY, currentCount.toString());
+
+      if (currentCount >= minActions) {
+        const lastPrompt = await storage.get(LAST_PROMPT_DATE_KEY);
+        const now = new Date().getTime();
+        
+        // Only prompt once every 30 days
+        const thirtyDays = 30 * 24 * 60 * 60 * 1000;
+        
+        if (!lastPrompt || (now - parseInt(lastPrompt, 10)) > thirtyDays) {
+          if (await StoreReview.isAvailableAsync()) {
+            await StoreReview.requestReview();
+            await storage.save(LAST_PROMPT_DATE_KEY, now.toString());
+            // Reset counter after successful prompt
+            await storage.save(ACTIONS_COUNT_KEY, '0');
+          }
+        }
+      }
+    } catch (error) {
+      console.warn('[ActionTracker] Error:', error);
+    }
+  }
+};