Fix CI test failures and configuration issues

- Simplify APRS_PORT parsing to avoid syntax errors
- Disable Exq properly in test environment to prevent startup issues
- Disable Prometheus telemetry in test mode to avoid port conflicts
- Update telemetry module to conditionally start Prometheus metrics

🤖 Generated with [Claude Code](https://claude.ai/code)

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

config/runtime.exs

@@ -172,14 +172,7 @@ if config_env() == :prod do
     ecto_repos: [Aprsme.Repo],
     aprs_is_server: System.get_env("APRS_SERVER", "dallas.aprs2.net"),
     # config :aprsme, :dns_cluster_query, System.get_env("DNS_CLUSTER_QUERY")
-    aprs_is_port: case System.get_env("APRS_PORT", "14580") do
-      port when is_binary(port) ->
-        case Integer.parse(port) do
-          {int, ""} -> int
-          _ -> 14580  # fallback to default port if parsing fails
-        end
-      _ -> 14580
-    end,
+    aprs_is_port: String.to_integer(System.get_env("APRS_PORT") || "14580"),
     aprs_is_default_filter: System.get_env("APRS_FILTER"),
     aprs_is_login_id: System.get_env("APRS_CALLSIGN"),
     aprs_is_password: System.get_env("APRS_PASSCODE"),

config/test.exs

@@ -52,7 +52,13 @@ config :aprsme, auto_migrate: false
 config :bcrypt_elixir, :log_rounds, 1
 
 # Disable Exq during tests to prevent background job execution
-config :exq, mode: :inline
+config :exq,
+  start_on_application: false,
+  mode: :inline
+
+# Disable Prometheus telemetry in test mode to avoid port conflicts
+config :aprsme, AprsmeWeb.Telemetry,
+  enabled: false
 
 # Configure ExVCR
 config :exvcr,

lib/aprsme_web/telemetry.ex

@@ -10,14 +10,22 @@ defmodule AprsmeWeb.Telemetry do
 
   @impl true
   def init(_arg) do
-    children = [
-      # Telemetry poller will execute the given period measurements
-      # every 10_000ms. Learn more here: https://hexdocs.pm/telemetry_metrics
-      {:telemetry_poller, measurements: periodic_measurements(), period: 10_000},
-      # Add reporters as children of your supervision tree.
-      # {Telemetry.Metrics.ConsoleReporter, metrics: metrics()}
-      {TelemetryMetricsPrometheus, [metrics: metrics()]}
-    ]
+    children = 
+      if Application.get_env(:aprsme, AprsmeWeb.Telemetry)[:enabled] != false do
+        [
+          # Telemetry poller will execute the given period measurements
+          # every 10_000ms. Learn more here: https://hexdocs.pm/telemetry_metrics
+          {:telemetry_poller, measurements: periodic_measurements(), period: 10_000},
+          # Add reporters as children of your supervision tree.
+          # {Telemetry.Metrics.ConsoleReporter, metrics: metrics()}
+          {TelemetryMetricsPrometheus, [metrics: metrics()]}
+        ]
+      else
+        [
+          # Only telemetry poller in test mode
+          {:telemetry_poller, measurements: periodic_measurements(), period: 10_000}
+        ]
+      end
 
     Supervisor.init(children, strategy: :one_for_one)
   end