feat: add documentation crate and integrate OpenAPI specifications

- Added a new crate `doc` for API documentation.
- Integrated `utoipa` for OpenAPI support in the presentation layer.
- Updated routes to include social features (follow, unfollow, etc.) and diary export.
- Enhanced API request and response structures with new DTOs for social interactions.
- Updated `Cargo.toml` files to include new dependencies and features.
- Modified Dockerfile to copy the new documentation crate.
- Refactored existing handlers and routes to accommodate new API endpoints.
- Updated tests to cover new functionality and ensure proper API behavior.

crates/presentation/src/openapi.rs

@@ -0,0 +1,65 @@
+use utoipa::{
+    Modify, OpenApi,
+    openapi::security::{Http, HttpAuthScheme, SecurityScheme},
+};
+
+use crate::dtos::{
+    ActorListResponse, ActorUrlRequest, DiaryEntryDto, DiaryResponse, FollowRequest, LoginRequest,
+    LoginResponse, LogReviewRequest, MovieDto, RegisterRequest, RemoteActorDto, ReviewDto,
+    ReviewHistoryResponse,
+};
+
+struct SecurityAddon;
+
+impl Modify for SecurityAddon {
+    fn modify(&self, openapi: &mut utoipa::openapi::OpenApi) {
+        let components = openapi.components.get_or_insert_with(Default::default);
+        components.add_security_scheme(
+            "bearer_auth",
+            SecurityScheme::Http(Http::new(HttpAuthScheme::Bearer)),
+        );
+    }
+}
+
+#[derive(OpenApi)]
+#[openapi(
+    info(
+        title = "Movies Diary API",
+        version = "1.0.0",
+        description = "REST API for Movies Diary. Authenticate with `POST /api/v1/auth/login` to get a Bearer token."
+    ),
+    paths(
+        crate::handlers::api::get_diary,
+        crate::handlers::api::get_review_history,
+        crate::handlers::api::post_review,
+        crate::handlers::api::delete_review,
+        crate::handlers::api::sync_poster,
+        crate::handlers::api::login,
+        crate::handlers::api::register,
+        crate::handlers::api::export_diary,
+        crate::handlers::api::get_following,
+        crate::handlers::api::get_followers,
+        crate::handlers::api::follow,
+        crate::handlers::api::unfollow,
+        crate::handlers::api::accept_follower,
+        crate::handlers::api::reject_follower,
+        crate::handlers::api::remove_follower,
+    ),
+    components(schemas(
+        DiaryResponse,
+        DiaryEntryDto,
+        MovieDto,
+        ReviewDto,
+        LogReviewRequest,
+        LoginRequest,
+        LoginResponse,
+        RegisterRequest,
+        ReviewHistoryResponse,
+        ActorListResponse,
+        RemoteActorDto,
+        FollowRequest,
+        ActorUrlRequest,
+    )),
+    modifiers(&SecurityAddon),
+)]
+pub struct ApiDoc;