remove youtube support and add local file handling

packages/web/src/app/media/[file]/route.ts

@@ -0,0 +1,43 @@
+import Config from "@rahoot/socket/services/config"
+import { mimeForStoredFile } from "@rahoot/web/server/media"
+import fs from "fs"
+import { promises as fsp } from "fs"
+import path from "path"
+import { NextResponse } from "next/server"
+
+export const runtime = "nodejs"
+export const dynamic = "force-dynamic"
+
+type Params = {
+  params: { file: string }
+}
+
+export async function GET(_request: Request, { params }: Params) {
+  const safeName = path.basename(params.file)
+
+  if (safeName !== params.file) {
+    return NextResponse.json({ error: "Invalid file name" }, { status: 400 })
+  }
+
+  const filePath = Config.getMediaPath(safeName)
+
+  if (!fs.existsSync(filePath)) {
+    return NextResponse.json({ error: "File not found" }, { status: 404 })
+  }
+
+  try {
+    const buffer = await fsp.readFile(filePath)
+    const mime = mimeForStoredFile(safeName)
+
+    return new NextResponse(buffer, {
+      status: 200,
+      headers: {
+        "Content-Type": mime,
+        "Cache-Control": "public, max-age=31536000, immutable",
+      },
+    })
+  } catch (error) {
+    console.error("Failed to read media file", error)
+    return NextResponse.json({ error: "Unable to read file" }, { status: 500 })
+  }
+}