fix: Bump size limits and fix E2E test webpack config

- Bump @sentry/react (incl. Tracing) limit from 44 KB to 44.5 KB
- Bump @sentry/svelte limit from 25 KB to 25.5 KB
- Bump @sentry/sveltekit (client) limit from 42 KB to 42.5 KB
- Use EnvironmentPlugin instead of DefinePlugin for more robust env var replacement

Author: BYK

.size-limit.js

@@ -148,7 +148,7 @@ module.exports = [
     import: createImport('init', 'ErrorBoundary', 'reactRouterV6BrowserTracingIntegration'),
     ignore: ['react/jsx-runtime'],
     gzip: true,
-    limit: '44 KB',
+    limit: '44.5 KB',
   },
   // Vue SDK (ESM)
   {
@@ -171,7 +171,7 @@ module.exports = [
     path: 'packages/svelte/build/esm/index.js',
     import: createImport('init'),
     gzip: true,
-    limit: '25 KB',
+    limit: '25.5 KB',
   },
   // Browser CDN bundles
   {
@@ -243,7 +243,7 @@ module.exports = [
     import: createImport('init'),
     ignore: ['$app/stores'],
     gzip: true,
-    limit: '42 KB',
+    limit: '42.5 KB',
   },
   // Node-Core SDK (ESM)
   {

dev-packages/e2e-tests/test-applications/browser-spotlight/build.mjs

@@ -18,12 +18,12 @@ webpack(
       minimizer: [new TerserPlugin()],
     },
     plugins: [
-      new webpack.DefinePlugin({
-        // E2E_TEST_DSN can be passed from environment or defaults to empty
-        'process.env.E2E_TEST_DSN': JSON.stringify(process.env.E2E_TEST_DSN || ''),
+      // EnvironmentPlugin is more robust for replacing process.env.* references
+      new webpack.EnvironmentPlugin({
+        E2E_TEST_DSN: '',
         // SENTRY_SPOTLIGHT is hardcoded to point to the Spotlight proxy server on port 3032
         // This tests that the SDK correctly parses the env var and sends events to Spotlight
-        'process.env.SENTRY_SPOTLIGHT': JSON.stringify('http://localhost:3032/stream'),
+        SENTRY_SPOTLIGHT: 'http://localhost:3032/stream',
       }),
       new HtmlWebpackPlugin({
         template: path.join(__dirname, 'public/index.html'),

dev-packages/e2e-tests/test-applications/browser-spotlight/package.json

@@ -14,7 +14,7 @@
     "build": "node build.mjs",
     "test": "playwright test",
     "clean": "npx rimraf node_modules pnpm-lock.yaml",
-    "test:build": "SENTRY_SPOTLIGHT=http://localhost:3032/stream pnpm install && SENTRY_SPOTLIGHT=http://localhost:3032/stream pnpm build",
+    "test:build": "pnpm install && pnpm build",
     "test:assert": "pnpm test"
   },
   "devDependencies": {