docs: add concrete docker-compose example to remote pollers help section

Show the actual docker-compose.yml with agent + watchtower setup.
Emphasize lightweight nature and auto-updates.

lib/towerops_web/live/help_live/index.ex

@@ -821,9 +821,12 @@ defmodule ToweropsWeb.HelpLive.Index do
 
                   <div class="prose prose-sm dark:prose-invert max-w-none">
                     <p class="text-gray-600 dark:text-gray-400">
-                      Remote pollers allow you to monitor devices that are not accessible from the public internet,
-                      such as devices behind firewalls, in private networks, or at remote locations. A remote poller
-                      runs on your network and securely communicates with Towerops to poll your devices locally.
+                      Remote pollers are lightweight Docker containers that run on your network to monitor devices
+                      that aren't accessible from the public internet — behind firewalls, on private networks, or
+                      at remote locations. They use minimal resources (1 CPU core, 512 MB RAM) and auto-update
+                      themselves via Watchtower. Just deploy a
+                      <.code>docker-compose.yml</.code>
+                      and you're done.
                     </p>
 
                     <h3 class="text-lg font-semibold text-gray-900 dark:text-white mt-6 mb-3">
@@ -882,12 +885,42 @@ defmodule ToweropsWeb.HelpLive.Index do
                         </div>
                         <div class="flex-1">
                           <h4 class="text-base font-semibold text-gray-900 dark:text-white mb-2">
-                            Get Docker Compose Configuration
+                            Create a docker-compose.yml
                           </h4>
                           <p class="text-gray-600 dark:text-gray-400">
-                            On the Agents page, add a new remote agent. Copy the
+                            When you create a new agent on the
+                            <.code>Agents</.code>
+                            page, Towerops will show you a ready-to-use
                             <.code>docker-compose.yml</.code>
-                            file contents from the agent details, which includes your authentication token pre-configured.
+                            with your agent token pre-filled. It looks like this:
+                          </p>
+                          <div class="mt-3 p-4 bg-black rounded-lg not-prose overflow-x-auto">
+                            <pre class="text-xs text-green-400 font-mono"><code>services:
+  towerops-agent:
+    image: ghcr.io/towerops-app/towerops-agent:latest
+    container_name: towerops-agent
+    restart: unless-stopped
+    environment:
+      - TOWEROPS_API_URL=https://app.towerops.net/
+      - TOWEROPS_AGENT_TOKEN=your-token-here
+    labels:
+      - "com.centurylinklabs.watchtower.enable=true"
+      - "com.centurylinklabs.watchtower.scope=towerops"
+
+  watchtower:
+    image: containrrr/watchtower:latest
+    container_name: towerops-watchtower
+    restart: unless-stopped
+    environment:
+      - WATCHTOWER_POLL_INTERVAL=43200
+      - WATCHTOWER_LABEL_ENABLE=true
+      - WATCHTOWER_CLEANUP=true
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock</code></pre>
+                          </div>
+                          <p class="text-gray-600 dark:text-gray-400 mt-3">
+                            The agent is lightweight — it uses minimal CPU and memory. Watchtower is included
+                            to automatically update the agent every 12 hours, so you never have to think about it.
                           </p>
                         </div>
                       </div>
@@ -901,18 +934,19 @@ defmodule ToweropsWeb.HelpLive.Index do
                         </div>
                         <div class="flex-1">
                           <h4 class="text-base font-semibold text-gray-900 dark:text-white mb-2">
-                            Deploy the Remote Poller
+                            Deploy It
                           </h4>
                           <p class="text-gray-600 dark:text-gray-400">
-                            Transfer the
+                            Copy the
                             <.code>docker-compose.yml</.code>
-                            file to your server and run:
+                            to your server and run:
                           </p>
                           <div class="mt-3 p-4 bg-black rounded-lg not-prose">
-                            <span class="text-sm text-white font-mono">docker compose up -d</span>
+                            <pre class="text-sm text-white font-mono"><code>docker compose up -d</code></pre>
                           </div>
                           <p class="text-gray-600 dark:text-gray-400 mt-3">
-                            The remote poller will start automatically and connect to Towerops.
+                            That's it. The agent will connect to Towerops within seconds and start polling your local devices.
+                            You'll see it come online on the Agents page.
                           </p>
                         </div>
                       </div>