chore: remove unused provider limits scheduler export (#5354)

Integrated into release/v3.8.41 — dead-code removal (typecheck:core EXIT 0, 102 affected tests green, fabricated-docs clean). Thanks @JxnLexn.

src/shared/services/providerLimitsSyncScheduler.ts

@@ -70,16 +70,3 @@ export function startProviderLimitsSyncScheduler(): void {
     startupTimer.unref?.();
   })();
 }
-
-export function stopProviderLimitsSyncScheduler(): void {
-  if (startupTimer) {
-    clearTimeout(startupTimer);
-    startupTimer = null;
-  }
-
-  if (schedulerTimer) {
-    clearInterval(schedulerTimer);
-    schedulerTimer = null;
-    console.log("[ProviderLimitsSync] Scheduler stopped");
-  }
-}

tests/unit/provider-limits-sync-scheduler-public-surface.test.ts

@@ -0,0 +1,23 @@
+import assert from "node:assert/strict";
+import fs from "node:fs";
+import os from "node:os";
+import path from "node:path";
+import test from "node:test";
+
+const TEST_DATA_DIR = fs.mkdtempSync(path.join(os.tmpdir(), "omniroute-provider-limits-sync-"));
+process.env.DATA_DIR = TEST_DATA_DIR;
+process.env.NODE_ENV = "test";
+process.env.DISABLE_SQLITE_AUTO_BACKUP = "true";
+
+const schedulerModule = await import("../../src/shared/services/providerLimitsSyncScheduler.ts");
+const core = await import("../../src/lib/db/core.ts");
+
+test.after(() => {
+  core.resetDbInstance();
+  fs.rmSync(TEST_DATA_DIR, { recursive: true, force: true });
+});
+
+test("provider limits sync scheduler public surface excludes unused stop helper", () => {
+  assert.equal("startProviderLimitsSyncScheduler" in schedulerModule, true);
+  assert.equal("stopProviderLimitsSyncScheduler" in schedulerModule, false);
+});