fix(WP-0017/E3): Layer 3 error fixes — controllers and views

Fix compilation errors across 6 controllers and 29 views: import cleanup,
ResponseException pattern for API auth, type fixes, unused import removal.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Web/View/Annotations/New.hs

@@ -1,9 +1,6 @@
 module Web.View.Annotations.New where
 
-import Web.Types
-import Generated.Types
-import IHP.Prelude
-import IHP.ViewPrelude
+import Web.View.Prelude
 import Web.Routes ()
 
 data NewView = NewView