feat(sms): add selectable provider strategy

tests/test_sms_provider.py

@@ -0,0 +1,26 @@
+from gapido_auth.config import Settings
+from gapido_auth.infrastructure.kavenegar_client import KavenegarSmsClient
+from gapido_auth.infrastructure.sms_ir_client import SmsIrSmsClient
+from gapido_auth.infrastructure.sms_provider import create_sms_client, get_sms_template
+
+
+def test_sms_provider_factory_selects_kavenegar() -> None:
+    settings = Settings(
+        sms_provider="kavenegar",
+        kavenegar_api_key="kavenegar-key",
+        kavenegar_login_template="login-otp",
+    )
+
+    assert isinstance(create_sms_client(settings), KavenegarSmsClient)
+    assert get_sms_template(settings) == "login-otp"
+
+
+def test_sms_provider_factory_selects_sms_ir() -> None:
+    settings = Settings(
+        sms_provider="sms_ir",
+        sms_ir_api_key="sms-ir-key",
+        sms_ir_verify_template_id=570574,
+    )
+
+    assert isinstance(create_sms_client(settings), SmsIrSmsClient)
+    assert get_sms_template(settings) == "570574"