feat: servir arquivos do MinIO via API interna

frontend/src/app/api/files/[...path]/route.ts

@@ -0,0 +1,36 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { minioClient, bucketName } from '@/lib/minio';
+import { Readable } from 'stream';
+
+export async function GET(
+  _request: NextRequest,
+  { params }: { params: Promise<{ path: string[] }> }
+) {
+  const { path } = await params;
+  const key = path.join('/');
+
+  if (!key) {
+    return NextResponse.json({ error: 'Arquivo não especificado' }, { status: 400 });
+  }
+
+  try {
+    const object = await minioClient.getObject(bucketName, key);
+
+    if (!object || !object.Body) {
+      return NextResponse.json({ error: 'Arquivo não encontrado' }, { status: 404 });
+    }
+
+    const contentType = object.ContentType || 'application/octet-stream';
+    const body = object.Body instanceof Readable ? Readable.toWeb(object.Body) : object.Body;
+
+    return new Response(body as ReadableStream, {
+      headers: {
+        'Content-Type': contentType,
+        'Cache-Control': 'public, max-age=31536000, immutable',
+      },
+    });
+  } catch (error) {
+    console.error('[files] Erro ao buscar arquivo:', error);
+    return NextResponse.json({ error: 'Erro ao buscar arquivo' }, { status: 500 });
+  }
+}