fix(tui): forward the clear promise from App, so AuthTab can actually await it (#2144)

Copilot review round 12, and the best catch of the review.

`onClearOAuth` was wired as `() => { void handleClearOAuth(); }`, so the
promise `AuthTab` awaits resolved instantly. Everything round 6 through 9 built
on that await was therefore inert in production while still passing its own
tests: the pending line never showed, the repeat lock released immediately, and
a rejection went unhandled instead of reaching the failure line.

Passed directly now. The regression test drives the real App rather than
`AuthTab` in isolation — the wiring is the contract, and only an App-level test
can see it. Verified it fails when the void-ing arrow is put back.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0177mPHAdECD18nLLCTwR5rh
Signed-off-by: cliffhall <cliff@futurescale.com>

clients/tui/__tests__/App.test.tsx

@@ -1412,6 +1412,39 @@ describe("App (mid-session auth lifecycle events)", () => {
     await expectFrame(r, "unreachable");
   });
 
+  // The wiring is the contract here, not just `AuthTab`'s own behavior: a
+  // `void`-ing arrow between them resolves instantly, which makes the pending
+  // state, the repeat lock and the rejection path all inert while revocation
+  // is still running. Driven through the real App so the arrow cannot come
+  // back (#2144).
+  it("holds the pending state until the clear actually settles", async () => {
+    let settle: () => void = () => {};
+    h.clientSpies.clearOAuthTokens.mockImplementation(
+      () =>
+        new Promise((resolve) => {
+          settle = () =>
+            resolve({ status: "skipped", reason: "no_endpoint" as const });
+        }),
+    );
+    const r = await mount(oneHttp());
+    await press(r, ["a", "s"]);
+    await waitUntil(() => h.clientSpies.clearOAuthTokens.mock.calls.length > 0);
+    await tick();
+
+    // Still running: the pending line is up and the confirmation is not.
+    expect(r.lastFrame() ?? "").toContain("Clearing OAuth state");
+    expect(r.lastFrame() ?? "").not.toContain("OAuth state cleared");
+
+    // And the repeat lock is live, so a second press does not start another.
+    await press(r, ["s"]);
+    expect(h.clientSpies.clearOAuthTokens).toHaveBeenCalledTimes(1);
+
+    settle();
+    await waitUntil(() =>
+      (r.lastFrame() ?? "").includes("OAuth state cleared"),
+    );
+  });
+
   it("says nothing when there was nothing to revoke", async () => {
     const r = await mount(oneHttp());
     await press(r, ["a", "s"]);

clients/tui/src/App.tsx

@@ -1899,9 +1899,12 @@ function App({
                 focused={
                   focus === "tabContentList" || focus === "tabContentDetails"
                 }
-                onClearOAuth={() => {
+                // Passed directly, NOT wrapped in a `void`-ing arrow: AuthTab
-                  void handleClearOAuth();
+                // awaits this to hold its pending state, keep its repeat lock,
-                }}
+                // and route a rejection to the failure line. Dropping the
+                // promise here would resolve it instantly and make all three
+                // inert while revocation was still running (#2144).
+                onClearOAuth={handleClearOAuth}
                 connectionStatus={inspectorStatus}
               />
             ) : null}