feat(backend): add SaluteSpeech settings (auth key, cert path, scope)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

cpv3/infrastructure/settings.py

@@ -21,6 +21,8 @@ class Settings(BaseSettings):
             "http://localhost:3000",
             "http://localhost:3001",
             "http://localhost:8000",
+            "http://192.168.1.47:3000",
+            "http://192.168.1.47",
         ],
         alias="CORS_ALLOWED_ORIGINS",
     )
@@ -94,6 +96,15 @@ class Settings(BaseSettings):
         default="http://localhost:8000", alias="WEBHOOK_BASE_URL"
     )
 
+    # SaluteSpeech
+    salute_auth_key: str = Field(default="", alias="SALUTE_AUTH_KEY")
+    salute_ca_cert_path: Path | None = Field(
+        default=None, alias="SALUTE_CA_CERT_PATH"
+    )
+    salute_scope: str = Field(
+        default="SALUTE_SPEECH_PERS", alias="SALUTE_SCOPE"
+    )
+
     def get_database_url(self) -> str:
         if self.database_url:
             return self.database_url