fix: keep federated docker updates tab visible

docs/plugins.html

@@ -212,7 +212,9 @@ After editing, check the manifest endpoint and browser-console failure cases.</c
               <p>
                 <strong>Updates</strong> adds a conditional <strong>Updates</strong> workspace tab with PI WEB update,
                 restart, and installed-service guidance. It is built into PI WEB, enabled by default, and uses the
-                selected machine's plugin copy when machine federation is active.
+                selected machine's plugin copy when machine federation is active. Docker runtimes also publish a small
+                manifest hint so federated gateways can keep the remote Updates tab visible and expose Docker commands
+                while gateway status parsing catches up.
               </p>
               <ul>
                 <li>Plugin id: <code>updates</code></li>

docs/plugins.md

@@ -190,7 +190,7 @@ Built-in plugins can be managed from **Settings → Plugins** or with the top-le
 **Plugin id:** `updates`
 **What it does:** adds a conditional **Updates** workspace tab with PI WEB update, restart, and installed-service guidance.
 
-Updates is enabled by default. It declares `machineSpecific: true` so the gateway Updates tab only appears for the local machine; while a remote machine is selected, that remote machine's Updates plugin is used if available. To hide it, disable `updates` in **Settings → Plugins** or set:
+Updates is enabled by default. It declares `machineSpecific: true` so the gateway Updates tab only appears for the local machine; while a remote machine is selected, that remote machine's Updates plugin is used if available. Docker runtimes add a small manifest hint so federated gateways can keep the remote Updates tab visible and expose Docker commands while gateway status parsing catches up. To hide it, disable `updates` in **Settings → Plugins** or set:
 
 ```json
 {