Реформат путей к эндпоинтам.

Добавлен экстрактор пользователя с дополнительными полями.

Добавлена связь таблиц User и FCM.

Завершена реализация авторизации с помощью VK ID.

Добавлен эндпоинт fcm/update-callback/{version}.

Cargo.toml

@@ -25,7 +25,7 @@ hex = "0.4.3"
 mime = "0.3.17"
 objectid = "0.2.0"
 regex = "1.11.1"
-reqwest = "0.12.15"
+reqwest = { version = "0.12.15", features = ["json"] }
 serde = { version = "1.0.219", features = ["derive"] }
 serde_json = "1.0.140"
 serde_with = "3.12.0"
@@ -36,6 +36,7 @@ rand = "0.9.0"
 utoipa = { version = "5", features = ["actix_extras", "chrono"] }
 utoipa-rapidoc = { version = "6.0.0", features = ["actix-web"] }
 utoipa-actix-web = "0.1"
+uuid = { version = "1.16.0", features = ["v4"] }
 
 [dev-dependencies]
 actix-test = { path = "actix-test" }