fix API token creation and add raw ICMP ping to Rust agent

API token creation fix:
- Handle both nested (%{"token" => %{...}}) and flat params
- Support URL-encoded form data from LiveView
- Add validation for required name and organization_id fields

Rust agent raw ICMP ping implementation:
- New ping module with async ICMP echo request/reply
- Build ICMP packets manually with proper checksum calculation
- Use socket2 for raw socket creation (requires CAP_NET_RAW)
- Parse both raw ICMP and IP-wrapped responses
- Include unit tests for checksum and packet building
- Dependencies: socket2 v0.5, rand v0.8
- Compiles successfully with release profile optimizations

lib/towerops/monitoring/ping.ex

@@ -13,9 +13,10 @@ defmodule Towerops.Monitoring.Ping do
 
   @behaviour Towerops.Monitoring.PingBehaviour
 
-  require Logger
   import Bitwise
 
+  require Logger
+
   # ICMP protocol number
   @icmp_proto 1
 

lib/towerops_web/live/user_settings_live.ex

@@ -143,26 +143,38 @@ defmodule ToweropsWeb.UserSettingsLive do
   end
 
   @impl true
-  def handle_event("create_api_token", %{"token" => %{"name" => name, "organization_id" => org_id}}, socket) do
+  def handle_event("create_api_token", params, socket) do
     user = socket.assigns.current_scope.user
 
-    case Towerops.ApiTokens.create_api_token(%{
-           name: name,
-           organization_id: org_id,
-           user_id: user.id
-         }) do
-      {:ok, {_token, raw_token}} ->
-        socket =
-          socket
-          |> assign(:show_add_token_modal, false)
-          |> assign(:created_token, raw_token)
-          |> assign(:show_token_modal, true)
-          |> assign_api_tokens()
+    # Handle both nested token params and flat params
+    {name, org_id} =
+      case params do
+        %{"token" => %{"name" => n, "organization_id" => o}} -> {n, o}
+        %{"name" => n, "organization_id" => o} -> {n, o}
+        _ -> {nil, nil}
+      end
 
-        {:noreply, socket}
+    if name && org_id do
+      case Towerops.ApiTokens.create_api_token(%{
+             name: name,
+             organization_id: org_id,
+             user_id: user.id
+           }) do
+        {:ok, {_token, raw_token}} ->
+          socket =
+            socket
+            |> assign(:show_add_token_modal, false)
+            |> assign(:created_token, raw_token)
+            |> assign(:show_token_modal, true)
+            |> assign_api_tokens()
 
-      {:error, _changeset} ->
-        {:noreply, put_flash(socket, :error, "Failed to create API token.")}
+          {:noreply, socket}
+
+        {:error, _changeset} ->
+          {:noreply, put_flash(socket, :error, "Failed to create API token.")}
+      end
+    else
+      {:noreply, put_flash(socket, :error, "Name and organization are required.")}
     end
   end