fix compile warnings

CLAUDE.md

@@ -28,6 +28,7 @@ This is an Elixir Phoenix LiveView application that serves as a real-time APRS (
 - `mix dialyzer` - Static type analysis (must run and fix errors/warnings)
 - `mix sobelow` - Security vulnerability scanning
 - **IMPORTANT**: Always run `mix format` before considering any task complete
+- **MANDATORY**: Run `mix compile --warnings-as-errors` and ensure it passes before considering any task complete
 
 ### Assets (No Node.js)
 - `mix assets.deploy` - Build and minify frontend assets (Tailwind CSS + ESBuild)

lib/aprsme_web/live/components/error_boundary.ex

@@ -7,10 +7,6 @@ defmodule AprsmeWeb.Components.ErrorBoundary do
   """
   use Phoenix.Component
 
-  import AprsmeWeb.CoreComponents
-
-  alias Phoenix.LiveView.Socket
-
   @doc """
   Wraps content in an error boundary that catches and displays errors gracefully.