lint: fix await-thenable warnings

Remove unnecessary await on serializeEnvelope (returns sync value).
Suppress remaining await-thenable in cron callbacks and server action
instrumentation where callbacks may be async at runtime despite types.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/browser/src/transports/offline.ts

@@ -127,15 +127,15 @@ function createIndexedDbStore(options: BrowserOfflineTransportOptions): OfflineS
   return {
     push: async (env: Envelope) => {
       try {
-        const serialized = await serializeEnvelope(env);
+        const serialized = serializeEnvelope(env);
         await push(getStore(), serialized, options.maxQueueSize || 30);
       } catch {
         //
       }
     },
     unshift: async (env: Envelope) => {
       try {
-        const serialized = await serializeEnvelope(env);
+        const serialized = serializeEnvelope(env);
         await unshift(getStore(), serialized, options.maxQueueSize || 30);
       } catch {
         //

packages/nextjs/src/common/withServerActionInstrumentation.ts

@@ -120,6 +120,7 @@ async function withServerActionInstrumentationImplementation<A extends (...args:
               },
             },
             async span => {
+              // oxlint-disable-next-line typescript/await-thenable -- callback may be async at runtime
               const result = await handleCallbackErrors(callback, error => {
                 if (isNotFoundNavigationError(error)) {
                   // We don't want to report "not-found"s

packages/node-core/src/cron/node-cron.ts

@@ -58,6 +58,7 @@ export function instrumentNodeCron<T>(
                   // We have to manually catch here and capture the exception because node-cron swallows errors
                   // https://github.com/node-cron/node-cron/issues/399
                   try {
+                    // oxlint-disable-next-line typescript/await-thenable -- callback may be async at runtime
                     return await callback(...args);
                   } catch (e) {
                     captureException(e, {

packages/node-core/src/cron/node-schedule.ts

@@ -49,6 +49,7 @@ export function instrumentNodeSchedule<T>(lib: T & NodeSchedule): T {
               return withMonitor(
                 monitorSlug,
                 async () => {
+                  // oxlint-disable-next-line typescript/await-thenable -- callback may be async at runtime
                   await callback?.();
                 },
                 {

packages/solidstart/src/server/withServerActionInstrumentation.ts

@@ -42,6 +42,7 @@ export async function withServerActionInstrumentation<A extends (...args: unknow
         },
       },
       async span => {
+        // oxlint-disable-next-line typescript/await-thenable -- callback may be async at runtime
         const result = await handleCallbackErrors(callback, error => {
           if (!isRedirect(error)) {
             span.setStatus({ code: SPAN_STATUS_ERROR, message: 'internal_error' });

packages/sveltekit/src/vite/sourceMaps.ts

@@ -82,6 +82,7 @@ export async function makeCustomSentryVitePlugins(
 
   const { debug } = mergedOptions;
 
+  // oxlint-disable-next-line typescript/await-thenable -- sentryVitePlugin may return a Promise in some versions
   const sentryPlugins: Plugin[] = await sentryVitePlugin(mergedOptions);
 
   // In @sentry/vite-plugin v5, all functionality is consolidated into a single 'sentry-vite-plugin'.