cleanup(#1014): remove manager pinning from frontend — no special treatment for ruth

frontend/packages/dashboard/src/tabs.js

@@ -2586,14 +2586,8 @@ window.marked = marked;
   // one place. Returns the wrapping `<label class="schedule-field">`
   // ready to append to the form.
   function buildTargetChips({ idPrefix, fieldName, checked, extraNames = [] }) {
-    // Derive the manager's actual name from live state rather than
-    // hardcoding it — surface it first so it always appears before agents.
-    const managerContainer = Array.from(containersState.values()).find((c) => c.is_manager);
-    const managerName = managerContainer?.name;
     const candidates = ['operator'];
-    if (managerName) candidates.push(managerName);
     const containerNames = Array.from(containersState.values())
-      .filter((c) => !c.is_manager)
       .map((c) => c.name)
       .filter((n) => n !== 'operator')
       .sort();
@@ -2898,10 +2892,7 @@ window.marked = marked;
     const out = [];
     const push = (n) => { if (!seen.has(n)) { seen.add(n); out.push(n); } };
     push('operator');
-    const managerContainer = Array.from(containersState.values()).find((c) => c.is_manager);
-    if (managerContainer) push(managerContainer.name);
     const containerNames = Array.from(containersState.values())
-      .filter((c) => !c.is_manager)
       .map((c) => c.name)
       .filter((n) => n !== 'operator')
       .sort();

hive-c0re/src/container_view.rs

@@ -12,7 +12,7 @@ use rusqlite::Connection;
 use serde::{Deserialize, Serialize};
 
 use crate::coordinator::Coordinator;
-use crate::lifecycle::{self, AGENT_PREFIX, MANAGER_NAME};
+use crate::lifecycle::{self, AGENT_PREFIX};
 
 /// An agent-declared extra navigation link surfaced on the dashboard card.
 /// Written by the `hive-dashboard-links` NixOS oneshot into
@@ -34,10 +34,6 @@ pub struct ContainerView {
     /// not serialized to API responses since the dashboard no longer displays it.
     #[serde(skip)]
     pub container: String,
-    /// True when this is the manager agent. Informational — not used
-    /// to gate any server-side actions. Computed from `name ==
-    /// MANAGER_NAME` so it doesn't add new state.
-    pub is_manager: bool,
     pub port: u16,
     pub running: bool,
     pub needs_update: bool,
@@ -168,7 +164,6 @@ pub async fn build_all(coord: &Coordinator) -> Vec<ContainerView> {
             (false, None, None, false, None, None)
         };
         out.push(ContainerView {
-            is_manager: logical == MANAGER_NAME,
             port: lifecycle::agent_web_port(&logical),
             running,
             container: c.clone(),