feat(api-types): add utoipa ToSchema and IntoParams derives

crates/api-types/Cargo.toml

@@ -7,3 +7,4 @@ edition = "2021"
 serde  = { workspace = true }
 uuid   = { workspace = true }
 chrono = { workspace = true }
+utoipa = { version = "5.5.0", features = ["uuid", "chrono"] }

crates/api-types/src/requests.rs

@@ -1,34 +1,37 @@
 use serde::Deserialize;
 use uuid::Uuid;
 
-#[derive(Deserialize)]
+#[derive(Deserialize, utoipa::ToSchema)]
 pub struct RegisterRequest {
+    /// Username (1-32 chars, alphanumeric + underscore)
     pub username: String,
     pub email: String,
     pub password: String,
 }
 
-#[derive(Deserialize)]
+#[derive(Deserialize, utoipa::ToSchema)]
 pub struct LoginRequest {
     pub email: String,
     pub password: String,
 }
 
-#[derive(Deserialize)]
+#[derive(Deserialize, utoipa::ToSchema)]
 pub struct CreateThoughtRequest {
+    /// Up to 128 characters
     pub content: String,
     pub in_reply_to_id: Option<Uuid>,
+    /// One of: "public", "followers", "unlisted", "direct"
     pub visibility: Option<String>,
     pub content_warning: Option<String>,
     pub sensitive: Option<bool>,
 }
 
-#[derive(Deserialize)]
+#[derive(Deserialize, utoipa::ToSchema)]
 pub struct EditThoughtRequest {
     pub content: String,
 }
 
-#[derive(Deserialize)]
+#[derive(Deserialize, utoipa::ToSchema)]
 pub struct UpdateProfileRequest {
     pub display_name: Option<String>,
     pub bio: Option<String>,
@@ -37,17 +40,18 @@ pub struct UpdateProfileRequest {
     pub custom_css: Option<String>,
 }
 
-#[derive(Deserialize)]
+#[derive(Deserialize, utoipa::ToSchema)]
 pub struct SetTopFriendsRequest {
+    /// Ordered list of user UUIDs, max 8
     pub friend_ids: Vec<Uuid>,
 }
 
-#[derive(Deserialize)]
+#[derive(Deserialize, utoipa::ToSchema)]
 pub struct CreateApiKeyRequest {
     pub name: String,
 }
 
-#[derive(Deserialize)]
+#[derive(Deserialize, utoipa::IntoParams)]
 pub struct PaginationQuery {
     pub page: Option<u64>,
     pub per_page: Option<u64>,
@@ -63,7 +67,7 @@ impl PaginationQuery {
     }
 }
 
-#[derive(Deserialize)]
+#[derive(Deserialize, utoipa::IntoParams)]
 pub struct SearchQuery {
     pub q: String,
     pub page: Option<u64>,

crates/api-types/src/responses.rs

@@ -2,13 +2,13 @@ use chrono::{DateTime, Utc};
 use serde::Serialize;
 use uuid::Uuid;
 
-#[derive(Serialize)]
+#[derive(Serialize, utoipa::ToSchema)]
 pub struct AuthResponse {
     pub token: String,
     pub user: UserResponse,
 }
 
-#[derive(Serialize, Clone)]
+#[derive(Serialize, Clone, utoipa::ToSchema)]
 pub struct UserResponse {
     pub id: Uuid,
     pub username: String,
@@ -20,7 +20,7 @@ pub struct UserResponse {
     pub created_at: DateTime<Utc>,
 }
 
-#[derive(Serialize, Clone)]
+#[derive(Serialize, Clone, utoipa::ToSchema)]
 pub struct ThoughtResponse {
     pub id: Uuid,
     pub content: String,
@@ -38,22 +38,22 @@ pub struct ThoughtResponse {
     pub updated_at: Option<DateTime<Utc>>,
 }
 
-#[derive(Serialize)]
+#[derive(Serialize, utoipa::ToSchema)]
-pub struct PagedResponse<T: Serialize> {
+pub struct PagedResponse<T: Serialize + utoipa::ToSchema> {
     pub items: Vec<T>,
     pub total: i64,
     pub page: u64,
     pub per_page: u64,
 }
 
-#[derive(Serialize)]
+#[derive(Serialize, utoipa::ToSchema)]
 pub struct ApiKeyResponse {
     pub id: Uuid,
     pub name: String,
     pub created_at: DateTime<Utc>,
 }
 
-#[derive(Serialize)]
+#[derive(Serialize, utoipa::ToSchema)]
 pub struct NotificationResponse {
     pub id: Uuid,
     pub notification_type: String,
@@ -63,7 +63,15 @@ pub struct NotificationResponse {
     pub created_at: DateTime<Utc>,
 }
 
-#[derive(Serialize)]
+#[derive(Serialize, utoipa::ToSchema)]
 pub struct ErrorResponse {
     pub error: String,
 }
+
+#[derive(Serialize, utoipa::ToSchema)]
+pub struct CreatedApiKeyResponse {
+    pub id: Uuid,
+    pub name: String,
+    /// Raw API key — shown only once at creation
+    pub key: String,
+}

crates/presentation/Cargo.toml

@@ -35,6 +35,9 @@ activitypub-base    = { workspace = true }
 postgres-federation = { workspace = true }
 url                 = { workspace = true }
 activitypub_federation = "0.7.0-beta.11"
+utoipa             = { version = "5.5.0", features = ["axum_extras", "uuid", "chrono"] }
+utoipa-scalar      = { version = "0.3.0", features = ["axum"], default-features = false }
+utoipa-swagger-ui  = { version = "9.0.2", features = ["axum", "vendored"] }
 
 [dev-dependencies]
 http-body-util = "0.1"