fix: auto-update when manifest version old (2.5.2 -> 2.5.4)

- frontend now checks /api/dashboard/plugins manifest version vs EXPECTED 2.5.4
- if old, auto POST /api/dashboard/agent-plugins/sshx-link/update (hermes plugins update) then rescan
- ensures server pulls new code without SSH, even when backend 404
- bump v2.5.4

dashboard/dist/index.js

@@ -110,6 +110,23 @@
 
     React.useEffect(function(){ check(); const t=setInterval(check, 3000); return function(){clearInterval(t);} }, [check]);
 
+    // if manifest version is old, trigger plugin update via dashboard API (hermes plugins update)
+    React.useEffect(function(){
+      const EXPECTED = "2.5.4";
+      fetchJSONAllowError("/api/dashboard/plugins").then(function(list){
+        try {
+          const p = Array.isArray(list) ? list.find(function(x){return x.name==="sshx-link";}) : null;
+          if (p && p.version !== EXPECTED) {
+            setMsg("Phát hiện plugin cũ "+p.version+" != "+EXPECTED+" — đang tự động update (hermes plugins update)...");
+            fetchJSONAllowError("/api/dashboard/agent-plugins/sshx-link/update", {method:"POST"}).then(function(){
+              setMsg("Đã gửi update, đợi 5s rồi rescan...");
+              setTimeout(function(){ fetchJSONAllowError("/api/dashboard/plugins/rescan").then(function(){ setTimeout(check, 2000); }); }, 5000);
+            }).catch(function(e){ setMsg("Update failed: "+e.message); });
+          }
+        } catch(_){}
+      }).catch(function(){});
+    }, [check]);
+
     // auto-start once if no link after initial check
     React.useEffect(function(){
       if (triedAuto) return;

dashboard/manifest.json

@@ -3,7 +3,7 @@
   "label": "sshx.io Terminal",
   "description": "Auto-start sshx via systemd/nohup, pid starttime guard, gửi ntfy — dashboard ẩn",
   "icon": "Terminal",
-  "version": "2.5.3",
+  "version": "2.5.4",
   "tab": {
     "path": "/sshx",
     "position": "end",

plugin.yaml

@@ -1,5 +1,5 @@
 name: sshx-link
-version: 2.5.3
+version: 2.5.4
 description: Auto-start sshx via nohup và gửi link về ntfy.sh/kUIJK0H1ettQ4VkR — dashboard ẩn
 author: sisyphus
 provides_tools: