refactor: move umami and sentry to server side

app/errors/api/relay/route.ts

@@ -0,0 +1,69 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { getServerAppServices } from '@/lib/services/create-services.server';
+import { config } from '@/lib/config';
+
+/**
+ * Smart Proxy / Relay for Sentry/GlitchTip events.
+ *
+ * This Route Handler receives Sentry envelopes from the client,
+ * injects the correct DSN if needed, and forwards them to the
+ * internal GlitchTip/Sentry instance.
+ *
+ * This hides the real DSN from the client and bypasses ad-blockers
+ * that target Sentry's default ingest endpoints.
+ */
+export async function POST(request: NextRequest) {
+  const services = getServerAppServices();
+  const logger = services.logger.child({ component: 'sentry-relay' });
+
+  try {
+    const envelope = await request.text();
+
+    // Sentry envelopes can contain multiple parts separated by newlines
+    const lines = envelope.split('\n');
+    if (lines.length < 1) {
+      return NextResponse.json({ error: 'Empty envelope' }, { status: 400 });
+    }
+
+    const header = JSON.parse(lines[0]);
+    const realDsn = config.errors.glitchtip.dsn;
+
+    if (!realDsn) {
+      logger.warn('Sentry relay received but no SENTRY_DSN configured on server');
+      return NextResponse.json({ status: 'ignored' }, { status: 200 });
+    }
+
+    const dsnUrl = new URL(realDsn);
+    const projectId = dsnUrl.pathname.replace('/', '');
+    const relayUrl = `${dsnUrl.protocol}//${dsnUrl.host}/api/${projectId}/envelope/`;
+
+    logger.debug('Relaying Sentry envelope', {
+      projectId,
+      host: dsnUrl.host,
+    });
+
+    const response = await fetch(relayUrl, {
+      method: 'POST',
+      body: envelope,
+      headers: {
+        'Content-Type': 'application/x-sentry-envelope',
+      },
+    });
+
+    if (!response.ok) {
+      const errorText = await response.text();
+      logger.error('Sentry/GlitchTip API responded with error', {
+        status: response.status,
+        error: errorText.slice(0, 100),
+      });
+      return new NextResponse(errorText, { status: response.status });
+    }
+
+    return NextResponse.json({ status: 'ok' });
+  } catch (error) {
+    logger.error('Failed to relay Sentry request', {
+      error: (error as Error).message,
+    });
+    return NextResponse.json({ error: 'Internal Server Error' }, { status: 500 });
+  }
+}