add: community topic endpoints

crates/app/src/routes/api/v1/mod.rs

@@ -131,6 +131,18 @@ pub fn routes() -> Router {
             "/communities/{id}/supports_titles",
             get(communities::communities::supports_titles_request),
         )
+        .route(
+            "/communities/{id}/topics",
+            post(communities::communities::add_topic_request),
+        )
+        .route(
+            "/communities/{id}/topics/{id}",
+            post(communities::communities::update_topic_request),
+        )
+        .route(
+            "/communities/{id}/topics/{id}",
+            delete(communities::communities::delete_topic_request),
+        )
         // posts
         .route("/posts", post(communities::posts::create_request))
         .route("/posts/{id}", delete(communities::posts::delete_request))
@@ -778,6 +790,13 @@ pub struct UpdateCommunityJoinAccess {
     pub access: CommunityJoinAccess,
 }
 
+#[derive(Deserialize)]
+pub struct AddTopic {
+    pub title: String,
+    pub description: String,
+    pub color: String,
+}
+
 #[derive(Deserialize)]
 pub struct CreatePostPoll {
     pub option_a: String,