chore: initial commit of ai site platform

Co-authored-by: Cursor <cursoragent@cursor.com>

platform/internal/smsstore/store_test.go

@@ -0,0 +1,23 @@
+package smsstore
+
+import (
+	"testing"
+	"time"
+)
+
+func TestIssueAndConsume(t *testing.T) {
+	s := New(time.Minute, time.Second, "654321")
+	code, exp, retry, err := s.Issue(PurposeLogin, "13800138000")
+	if err != nil || code != "654321" || exp <= 0 || retry != 0 {
+		t.Fatalf("issue %q %d %d %v", code, exp, retry, err)
+	}
+	if err := s.Consume(PurposeLogin, "13800138000", "000000"); err == nil {
+		t.Fatal("bad code should fail")
+	}
+	if err := s.Consume(PurposeLogin, "13800138000", "654321"); err != nil {
+		t.Fatal(err)
+	}
+	if err := s.Consume(PurposeLogin, "13800138000", "654321"); err == nil {
+		t.Fatal("consumed twice")
+	}
+}