Added a system for tracking mobile search attempts and updated associated tests

src/util/MobileRetryTracker.ts

@@ -0,0 +1,26 @@
+export class MobileRetryTracker {
+  private attempts = 0
+  private readonly maxRetries: number
+
+  constructor(maxRetries: number) {
+    const normalized = Number.isFinite(maxRetries) ? Math.floor(maxRetries) : 0
+    this.maxRetries = Math.max(0, normalized)
+  }
+
+  /**
+   * Register an incomplete mobile search attempt.
+   * @returns true when another retry should be attempted, false when the retry budget is exhausted.
+   */
+  registerFailure(): boolean {
+    this.attempts += 1
+    return this.attempts <= this.maxRetries
+  }
+
+  hasExceeded(): boolean {
+    return this.attempts > this.maxRetries
+  }
+
+  getAttemptCount(): number {
+    return this.attempts
+  }
+}