fix(turn): keep mention override speaker/order when membership refresh runs

plugin/turn-manager.ts

@@ -55,8 +55,10 @@ function shuffleArray<T>(arr: T[]): T[] {
 export function initTurnOrder(channelId: string, botAccountIds: string[]): void {
   const existing = channelTurns.get(channelId);
   if (existing) {
-    // Check if membership changed
+    // Compare membership against base order.
-    const oldSet = new Set(existing.turnOrder);
+    // If mention override is active, turnOrder is temporary; use savedTurnOrder for stable comparison.
+    const baseOrder = existing.savedTurnOrder || existing.turnOrder;
+    const oldSet = new Set(baseOrder);
     const newSet = new Set(botAccountIds);
     const same = oldSet.size === newSet.size && [...oldSet].every(id => newSet.has(id));
     if (same) return; // no change
@@ -66,11 +68,40 @@ export function initTurnOrder(channelId: string, botAccountIds: string[]): void
       `oldOrder=${JSON.stringify(existing.turnOrder)} oldCurrent=${existing.currentSpeaker} ` +
       `oldOverride=${JSON.stringify(existing.savedTurnOrder || null)} newMembers=${JSON.stringify(botAccountIds)}`,
     );
-  } else {
+
+    const nextOrder = shuffleArray(botAccountIds);
+
+    // Mention override active: update only the saved base order.
+    // Keep temporary turnOrder/currentSpeaker intact so @mention routing is not clobbered.
+    if (existing.savedTurnOrder) {
+      existing.savedTurnOrder = nextOrder;
+      existing.lastChangedAt = Date.now();
+      console.log(
+        `[dirigent][turn-debug] initTurnOrder applied-base-only channel=${channelId} ` +
+        `savedOrder=${JSON.stringify(nextOrder)} keptOverrideOrder=${JSON.stringify(existing.turnOrder)} ` +
+        `keptCurrent=${existing.currentSpeaker}`,
+      );
+      return;
+    }
+
+    // Non-mention flow: preserve previous behavior (re-init to dormant).
+    channelTurns.set(channelId, {
+      turnOrder: nextOrder,
+      currentSpeaker: null, // start dormant
+      noRepliedThisCycle: new Set(),
+      lastChangedAt: Date.now(),
+      waitingForHuman: false,
+    });
+
+    console.log(
+      `[dirigent][turn-debug] initTurnOrder applied channel=${channelId} newOrder=${JSON.stringify(nextOrder)} newCurrent=null`,
+    );
+    return;
+  }
+
   console.log(
     `[dirigent][turn-debug] initTurnOrder first-init channel=${channelId} members=${JSON.stringify(botAccountIds)}`,
   );
-  }
 
   const nextOrder = shuffleArray(botAccountIds);
   channelTurns.set(channelId, {