fix(agents): handle overloaded failover separately (#38301)

* fix(agents): skip auth-profile failure on overload

* fix(agents): note overload auth-profile fallback fix

* fix(agents): classify overloaded failures separately

* fix(agents): back off before overload failover

* fix(agents): tighten overload probe and backoff state

* fix(agents): persist overloaded cooldown across runs

* fix(agents): tighten overloaded status handling

* test(agents): add overload regression coverage

* fix(agents): restore runner imports after rebase

* test(agents): add overload fallback integration coverage

* fix(agents): harden overloaded failover abort handling

* test(agents): tighten overload classifier coverage

* test(agents): cover all-overloaded fallback exhaustion

* fix(cron): retry overloaded fallback summaries

* fix(cron): treat HTTP 529 as overloaded retry

src/discord/monitor/auto-presence.test.ts

@@ -50,6 +50,26 @@ describe("discord auto presence", () => {
     expect(decision?.presence.activities[0]?.state).toBe("token exhausted");
   });
 
+  it("treats overloaded cooldown as exhausted", () => {
+    const now = Date.now();
+    const decision = resolveDiscordAutoPresenceDecision({
+      discordConfig: {
+        autoPresence: {
+          enabled: true,
+          exhaustedText: "token exhausted",
+        },
+      },
+      authStore: createStore({ cooldownUntil: now + 60_000, failureCounts: { overloaded: 2 } }),
+      gatewayConnected: true,
+      now,
+    });
+
+    expect(decision).toBeTruthy();
+    expect(decision?.state).toBe("exhausted");
+    expect(decision?.presence.status).toBe("dnd");
+    expect(decision?.presence.activities[0]?.state).toBe("token exhausted");
+  });
+
   it("recovers from exhausted to online once a profile becomes usable", () => {
     let now = Date.now();
     let store = createStore({ cooldownUntil: now + 60_000, failureCounts: { rate_limit: 1 } });

src/discord/monitor/auto-presence.ts

@@ -104,6 +104,7 @@ function isExhaustedUnavailableReason(reason: AuthProfileFailureReason | null):
   }
   return (
     reason === "rate_limit" ||
+    reason === "overloaded" ||
     reason === "billing" ||
     reason === "auth" ||
     reason === "auth_permanent"