feat: add media option to module to restrict body max size

updated media schema to enforce strict validation, introduced `options` for AppMedia, and added a key prefix feature for StorageR2Adapter to enhance flexibility and control.

app/src/adapter/cloudflare/storage/StorageR2Adapter.ts

@@ -49,6 +49,8 @@ export function registerMedia(
  * @todo: add tests (bun tests won't work, need node native tests)
  */
 export class StorageR2Adapter extends StorageAdapter {
+   public keyPrefix: string = "";
+
    constructor(private readonly bucket: R2Bucket) {
       super();
    }
@@ -175,7 +177,7 @@ export class StorageR2Adapter extends StorageAdapter {
    }
 
    protected getKey(key: string) {
-      return key;
+      return `${this.keyPrefix}/${key}`.replace(/^\/\//, "/");
    }
 
    toJSON(secrets?: boolean) {

app/src/media/AppMedia.ts

@@ -21,6 +21,9 @@ declare module "bknd" {
 // @todo: current workaround to make it all required
 export class AppMedia extends Module<Required<TAppMediaConfig>> {
    private _storage?: Storage;
+   options = {
+      body_max_size: null as number | null,
+   };
 
    override async build() {
       if (!this.config.enabled) {

app/src/media/api/MediaController.ts

@@ -93,7 +93,10 @@ export class MediaController extends Controller {
          },
       );
 
-      const maxSize = this.getStorage().getConfig().body_max_size ?? Number.POSITIVE_INFINITY;
+      const maxSize =
+         this.media.options.body_max_size ??
+         this.getStorage().getConfig().body_max_size ??
+         Number.POSITIVE_INFINITY;
 
       if (isDebug()) {
          hono.post(

app/src/media/media-schema.ts

@@ -48,7 +48,7 @@ export function buildMediaSchema() {
       {
          default: {},
       },
-   );
+   ).strict();
 }
 
 export const mediaConfigSchema = buildMediaSchema();