feat(dashboard): add hide/show toggle for dashboard plugins in sidebar

- New config key: dashboard.hidden_plugins (list of plugin names)
- GET /api/dashboard/plugins now filters out hidden plugins from sidebar
- POST /api/dashboard/plugins/{name}/visibility toggles visibility
- Hub response includes user_hidden boolean per plugin row
- Eye/EyeOff toggle on plugin cards with dashboard manifests
- i18n: 'Show in sidebar' / 'Hide from sidebar' (en/zh)

hermes_cli/web_server.py

@@ -3617,12 +3617,16 @@ def _get_dashboard_plugins(force_rescan: bool = False) -> list:
 
 @app.get("/api/dashboard/plugins")
 async def get_dashboard_plugins():
-    """Return discovered dashboard plugins."""
+    """Return discovered dashboard plugins (excludes user-hidden ones)."""
     plugins = _get_dashboard_plugins()
-    # Strip internal fields before sending to frontend.
+    # Read user's hidden plugins list from config.
+    config = load_config()
+    hidden: list = cfg_get(config, "dashboard", "hidden_plugins", default=[]) or []
+    # Strip internal fields before sending to frontend and filter out hidden.
     return [
         {k: v for k, v in p.items() if not k.startswith("_")}
         for p in plugins
+        if p["name"] not in hidden
     ]
 
 
@@ -3662,6 +3666,10 @@ def _merged_plugins_hub() -> Dict[str, Any]:
     disabled_set = _get_disabled_set()
     enabled_set = _get_enabled_set()
 
+    # Read user-hidden plugins from config for the user_hidden field.
+    config = load_config()
+    hidden_plugins: list = cfg_get(config, "dashboard", "hidden_plugins", default=[]) or []
+
     plugins_root_resolved = (get_hermes_home() / "plugins").resolve()
     rows: List[Dict[str, Any]] = []
 
@@ -3718,6 +3726,7 @@ def _merged_plugins_hub() -> Dict[str, Any]:
             "can_update_git": can_remove_update and (Path(dir_str) / ".git").exists(),
             "auth_required": auth_required,
             "auth_command": auth_command,
+            "user_hidden": name in hidden_plugins,
         })
 
     agent_names = {r["name"] for r in rows}
@@ -3863,6 +3872,33 @@ async def put_plugin_providers(request: Request, body: _PluginProvidersPutBody):
     return {"ok": True}
 
 
+class _PluginVisibilityBody(BaseModel):
+    hidden: bool
+
+
+@app.post("/api/dashboard/plugins/{name}/visibility")
+async def post_plugin_visibility(request: Request, name: str, body: _PluginVisibilityBody):
+    """Toggle a plugin's sidebar visibility (persists to config.yaml dashboard.hidden_plugins)."""
+    _require_token(request)
+    name = _validate_plugin_name(name)
+
+    config = load_config()
+    if "dashboard" not in config or not isinstance(config.get("dashboard"), dict):
+        config["dashboard"] = {}
+    hidden_list: list = config["dashboard"].get("hidden_plugins") or []
+    if not isinstance(hidden_list, list):
+        hidden_list = []
+
+    if body.hidden and name not in hidden_list:
+        hidden_list.append(name)
+    elif not body.hidden and name in hidden_list:
+        hidden_list.remove(name)
+
+    config["dashboard"]["hidden_plugins"] = hidden_list
+    save_config(config)
+    return {"ok": True, "name": name, "hidden": body.hidden}
+
+
 @app.get("/dashboard-plugins/{plugin_name}/{file_path:path}")
 async def serve_plugin_asset(plugin_name: str, file_path: str):
     """Serve static assets from a dashboard plugin directory.

web/src/i18n/en.ts

@@ -295,6 +295,8 @@ export const en: Translations = {
     authRequiredHint: "Run this command to authenticate:",
     updateGit: "Git pull",
     versionBadge: "Version",
+    showInSidebar: "Show in sidebar",
+    hideFromSidebar: "Hide from sidebar",
   },
 
   skills: {

web/src/i18n/types.ts

@@ -266,6 +266,8 @@ export interface Translations {
     authRequiredHint: string;
     updateGit: string;
     versionBadge: string;
+    showInSidebar: string;
+    hideFromSidebar: string;
   };
 
   // ── Profiles page ──

web/src/i18n/zh.ts

@@ -291,6 +291,8 @@ export const zh: Translations = {
     authRequiredHint: "运行此命令以完成认证：",
     updateGit: "git pull",
     versionBadge: "版本",
+    showInSidebar: "在侧边栏显示",
+    hideFromSidebar: "从侧边栏隐藏",
   },
 
   skills: {

web/src/lib/api.ts

@@ -299,6 +299,16 @@ export const api = {
       body: JSON.stringify(body),
     }),
 
+  setPluginVisibility: (name: string, hidden: boolean) =>
+    fetchJSON<{ ok: boolean; name: string; hidden: boolean }>(
+      `/api/dashboard/plugins/${encodeURIComponent(name)}/visibility`,
+      {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({ hidden }),
+      },
+    ),
+
   // Dashboard themes
   getThemes: () =>
     fetchJSON<DashboardThemesResponse>("/api/dashboard/themes"),
@@ -728,6 +738,7 @@ export interface HubAgentPluginRow {
   can_update_git: boolean;
   auth_required: boolean;
   auth_command: string;
+  user_hidden: boolean;
 }
 
 export interface PluginsHubProviders {

web/src/pages/PluginsPage.tsx

@@ -1,5 +1,5 @@
 import { useCallback, useEffect, useState } from "react";
-import { ExternalLink, RefreshCw, Puzzle, Trash2 } from "lucide-react";
+import { ExternalLink, RefreshCw, Puzzle, Trash2, Eye, EyeOff } from "lucide-react";
 import type { Translations } from "@/i18n/types";
 import { Link } from "react-router-dom";
 import { api } from "@/lib/api";
@@ -504,6 +504,27 @@ function PluginRowCard(props: PluginRowCardProps) {
               </Button>
             ) : null}
 
+            {row.has_dashboard_manifest ? (
+              <Button
+                disabled={busy}
+                ghost
+                size="sm"
+                title={row.user_hidden ? t.pluginsPage.showInSidebar : t.pluginsPage.hideFromSidebar}
+                onClick={() => {
+                  void setRuntimeLoading(row.name, async () => {
+                    await api.setPluginVisibility(row.name, !row.user_hidden);
+                  });
+                }}
+              >
+                {row.user_hidden ? (
+                  <EyeOff className="h-3.5 w-3.5" />
+                ) : (
+                  <Eye className="h-3.5 w-3.5" />
+                )}
+                {row.user_hidden ? t.pluginsPage.showInSidebar : t.pluginsPage.hideFromSidebar}
+              </Button>
+            ) : null}
+
             {row.can_remove ? (