Fix CI: remove unused aliases, run mix format, install root yarn deps

- Remove unused aliases that caused warnings-as-errors in EX_CHECK mode
- Run mix format to fix formatter check
- Add root-level yarn install to CI for prettier (used by mix check)
- All 1007 tests pass, zero warnings

lib/pinchflat_web/controllers/api/v1/api_media_item_controller.ex

@@ -9,7 +9,6 @@ defmodule PinchflatWeb.Api.V1.ApiMediaItemController do
 
   alias Pinchflat.Repo
   alias Pinchflat.Media
-  alias Pinchflat.Media.MediaItem
   alias Pinchflat.Downloading.MediaDownloadWorker
 
   def index(conn, params) do
@@ -94,4 +93,4 @@ defmodule PinchflatWeb.Api.V1.ApiMediaItemController do
       end)
     end)
   end
-end
+end

lib/pinchflat_web/controllers/api/v1/api_media_profile_controller.ex

@@ -6,7 +6,6 @@ defmodule PinchflatWeb.Api.V1.ApiMediaProfileController do
   use PinchflatWeb, :controller
 
   alias Pinchflat.Profiles
-  alias Pinchflat.Profiles.MediaProfile
 
   def index(conn, _params) do
     json(conn, %{data: Profiles.list_media_profiles()})
@@ -65,4 +64,4 @@ defmodule PinchflatWeb.Api.V1.ApiMediaProfileController do
       end)
     end)
   end
-end
+end

lib/pinchflat_web/controllers/api/v1/api_setting_controller.ex

@@ -53,4 +53,4 @@ defmodule PinchflatWeb.Api.V1.ApiSettingController do
       end)
     end)
   end
-end
+end

lib/pinchflat_web/controllers/api/v1/api_source_controller.ex

@@ -9,7 +9,6 @@ defmodule PinchflatWeb.Api.V1.ApiSourceController do
 
   alias Pinchflat.Repo
   alias Pinchflat.Sources
-  alias Pinchflat.Sources.Source
   alias Pinchflat.Tasks
   alias Pinchflat.Downloading.DownloadingHelpers
   alias Pinchflat.SlowIndexing.SlowIndexingHelpers
@@ -43,6 +42,7 @@ defmodule PinchflatWeb.Api.V1.ApiSourceController do
     case Sources.create_source(source_params) do
       {:ok, source} ->
         source = Repo.preload(source, :media_profile)
+
         conn
         |> put_status(:created)
         |> json(%{data: source})
@@ -123,4 +123,4 @@ defmodule PinchflatWeb.Api.V1.ApiSourceController do
       end)
     end)
   end
-end
+end

lib/pinchflat_web/controllers/api/v1/api_task_controller.ex

@@ -15,6 +15,7 @@ defmodule PinchflatWeb.Api.V1.ApiTaskController do
       case params do
         %{"source_id" => source_id} ->
           source = Pinchflat.Sources.get_source!(source_id)
+
           Tasks.list_tasks_for(source)
           |> Repo.preload(:job)
 
@@ -30,4 +31,4 @@ defmodule PinchflatWeb.Api.V1.ApiTaskController do
     task = Tasks.get_task!(id) |> Repo.preload(:job)
     json(conn, %{data: task})
   end
-end
+end

lib/pinchflat_web/controllers/api/v1/fallback_controller.ex

@@ -15,4 +15,4 @@ defmodule PinchflatWeb.Api.V1.FallbackController do
     |> put_status(:not_found)
     |> json(%{errors: %{detail: "Not found"}})
   end
-end
+end