fix(nitro): Use console instead of debug logger for build-time messages

`configureSourcemapSettings` runs at build time, but the `debug` logger
from `@sentry/core` is only initialized by `Sentry.init()` at runtime.
Switch to `console.warn`/`console.log` so build-time warnings (e.g.
source maps explicitly disabled) are actually visible to developers.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: logaretm

packages/nitro/src/sourceMaps.ts

@@ -1,6 +1,5 @@
 import type { Options as BundlerPluginOptions } from '@sentry/bundler-plugin-core';
 import { createSentryBuildPluginManager } from '@sentry/bundler-plugin-core';
-import { debug } from '@sentry/core';
 import type { Nitro, NitroConfig } from 'nitro/types';
 import type { SentryNitroOptions } from './config';
 
@@ -107,21 +106,26 @@ export function configureSourcemapSettings(config: NitroConfig, moduleOptions?:
   }
 
   if (config.sourcemap === false) {
-    debug.warn(
-      '[Sentry] You have explicitly disabled source maps (`sourcemap: false`). Sentry will not upload source maps, and errors will not be unminified. To let Sentry handle source maps, remove the `sourcemap` option from your Nitro config, or use `sourcemaps: { disable: true }` in your Sentry options to silence this warning.',
+    // eslint-disable-next-line no-console
+    console.warn(
+      '[@sentry/nitro] You have explicitly disabled source maps (`sourcemap: false`). Sentry will not upload source maps, and errors will not be unminified. To let Sentry handle source maps, remove the `sourcemap` option from your Nitro config, or use `sourcemaps: { disable: true }` in your Sentry options to silence this warning.',
     );
     return;
   }
 
   if (config.sourcemap === true) {
     if (moduleOptions?.debug) {
-      debug.log('[Sentry] Source maps are already enabled. Sentry will upload them for error unminification.');
+      // eslint-disable-next-line no-console
+      console.log('[@sentry/nitro] Source maps are already enabled. Sentry will upload them for error unminification.');
     }
   } else {
     // User did not explicitly set sourcemap — enable it for Sentry
     config.sourcemap = true;
     if (moduleOptions?.debug) {
-      debug.log('[Sentry] Enabled source map generation for Sentry. Source map files will be deleted after upload.');
+      // eslint-disable-next-line no-console
+      console.log(
+        '[@sentry/nitro] Enabled source map generation for Sentry. Source map files will be deleted after upload.',
+      );
     }
   }
 

packages/nitro/test/sourceMaps.test.ts

@@ -1,4 +1,3 @@
-import { debug } from '@sentry/core';
 import type { NitroConfig } from 'nitro/types';
 import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
 import type { SentryNitroOptions } from '../src/config';
@@ -143,17 +142,17 @@ describe('configureSourcemapSettings', () => {
   });
 
   it('respects user explicitly disabling sourcemaps and warns', () => {
-    const debugSpy = vi.spyOn(debug, 'warn').mockImplementation(() => {});
+    const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});
     const config: NitroConfig = { sourcemap: false };
     configureSourcemapSettings(config);
 
     expect(config.sourcemap).toBe(false);
-    expect(debugSpy).toHaveBeenCalledWith(expect.stringContaining('explicitly disabled source maps'));
-    debugSpy.mockRestore();
+    expect(warnSpy).toHaveBeenCalledWith(expect.stringContaining('explicitly disabled source maps'));
+    warnSpy.mockRestore();
   });
 
   it('does not modify experimental config when user disabled sourcemaps', () => {
-    vi.spyOn(debug, 'warn').mockImplementation(() => {});
+    vi.spyOn(console, 'warn').mockImplementation(() => {});
     const config: NitroConfig = { sourcemap: false };
     configureSourcemapSettings(config);