fix(providers): suppress stale reconnect replay

src/tui/runner/reconnect-recovery.test.ts

@@ -197,6 +197,34 @@ describe("reconnect recovery selection", () => {
     expect(delivered).toHaveLength(1);
   });
 
+  test("does not replay when the accepted generation becomes stale", () => {
+    const state = createReconnectRecoveryState();
+    const attempt = state.begin(operatorMessage(), "xai");
+    state.observe(attempt, credentialRetry());
+    state.observe(attempt, credentialFailure("xai/default-2"));
+    const pending = required(state.settle(attempt), "pending recovery");
+
+    let completeReconnect: ((connected: boolean) => void) | undefined;
+    applyReconnectRecoverySelection({
+      state,
+      generation: pending.generation,
+      selectedId: reconnectRecoveryItemId(pending.scope),
+      reconnect: (_scope, onComplete) => {
+        completeReconnect = onComplete;
+      },
+      armContinuation: () => {
+        throw new Error("should not arm");
+      },
+      cancelContinuation: () => undefined,
+      deliverContinuation: () => {
+        throw new Error("should not deliver");
+      },
+    });
+
+    state.begin(operatorMessage(), "anthropic");
+    completeReconnect?.(true);
+  });
+
   test("cancel, failure, and committed attempts never replay", () => {
     for (const connected of [false, true]) {
       const state = createReconnectRecoveryState();

src/tui/runner/reconnect-recovery.ts

@@ -183,6 +183,9 @@ export function createReconnectRecoveryState() {
         replay: !claimed.committed,
       };
     },
+    isCurrent(generation: number): boolean {
+      return generation === nextGeneration;
+    },
     clear(): void {
       pending = null;
       nextGeneration++;
@@ -208,7 +211,13 @@ export function applyReconnectRecoverySelection(args: {
   const onComplete = (connected: boolean): void => {
     if (completed) return;
     completed = true;
-    if (!connected || !acceptance.replay) return;
+    if (
+      !connected ||
+      !acceptance.replay ||
+      !args.state.isCurrent(acceptance.generation)
+    ) {
+      return;
+    }
     args.armContinuation(acceptance.generation);
     try {
       args.deliverContinuation(