feat: misc — cooking mode, OpenAPI docs, email, storage, upload, homepage

Cooking mode step-by-step view. OpenAPI 3.1 spec auto-generated from Zod schemas.
Email lib (resend). Redis client. S3 storage helper. Photo upload endpoint.
Landing page. Short recipe URL redirect /r/[id]. API docs page.

apps/web/lib/storage.ts

@@ -0,0 +1,29 @@
+import { S3Client, PutObjectCommand, DeleteObjectCommand } from "@aws-sdk/client-s3";
+import { getSignedUrl } from "@aws-sdk/s3-request-presigner";
+
+const bucket = process.env["STORAGE_BUCKET"] ?? "epicure-uploads";
+const endpoint = process.env["STORAGE_ENDPOINT"] ?? "http://localhost:9000";
+const publicUrl = process.env["STORAGE_PUBLIC_URL"] ?? "http://localhost:9000";
+
+const s3 = new S3Client({
+  region: process.env["STORAGE_REGION"] ?? "us-east-1",
+  endpoint,
+  forcePathStyle: true,
+  credentials: {
+    accessKeyId: process.env["STORAGE_ACCESS_KEY"] ?? "minioadmin",
+    secretAccessKey: process.env["STORAGE_SECRET_KEY"] ?? "minioadmin",
+  },
+});
+
+export async function createPresignedUploadUrl(key: string, contentType: string): Promise<string> {
+  const command = new PutObjectCommand({ Bucket: bucket, Key: key, ContentType: contentType });
+  return getSignedUrl(s3, command, { expiresIn: 300 });
+}
+
+export async function deleteObject(key: string): Promise<void> {
+  await s3.send(new DeleteObjectCommand({ Bucket: bucket, Key: key }));
+}
+
+export function getPublicUrl(key: string): string {
+  return `${publicUrl}/${bucket}/${key}`;
+}