cleanup(#1014): remove is_manager from ContainerView, add manager_name to StateSnapshot

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(),

hive-c0re/src/dashboard.rs

@@ -173,6 +173,9 @@ struct StateSnapshot {
     /// "apply everything you've buffered".
     seq: u64,
     hostname: String,
+    /// The logical name of the manager agent. Lets the dashboard identify
+    /// the manager container without a separate `is_manager` bool on each row.
+    manager_name: String,
     manager_port: u16,
     any_stale: bool,
     containers: Vec<ContainerView>,
@@ -446,6 +449,7 @@ async fn api_state(headers: HeaderMap, State(state): State<AppState>) -> axum::J
     axum::Json(StateSnapshot {
         seq,
         hostname,
+        manager_name: MANAGER_NAME.to_owned(),
         manager_port: lifecycle::agent_web_port(MANAGER_NAME),
         any_stale,
         containers,