fix: move getCacheDir before Telemetry init to preserve CI cache warning

The Telemetry constructor creates distDir/cache in CI environments via
getStorageDirectory(). Moving telemetry init before installBindings
(previous commit) inadvertently caused getCacheDir's "no-cache" warning
to be suppressed because the cache dir already existed when checked.

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

Author: 2 people

packages/next/src/build/index.ts

@@ -1020,6 +1020,10 @@ export default async function build(
       setGlobal('phase', PHASE_PRODUCTION_BUILD)
       setGlobal('distDir', distDir)
 
+      // Check for build cache before initializing telemetry, because the
+      // Telemetry constructor creates the cache directory in CI environments.
+      const cacheDir = getCacheDir(distDir)
+
       // Initialize telemetry before installBindings so that SWC load failure
       // events are captured if native bindings fail to load.
       const telemetry = new Telemetry({ distDir })
@@ -1123,8 +1127,6 @@ export default async function build(
           )
       }
 
-      const cacheDir = getCacheDir(distDir)
-
       const publicDir = path.join(dir, 'public')
       const { pagesDir, appDir } = findPagesDir(dir)