Support hour-long uploads and videos: raise body limit, stream uploads to disk, cache up to 3 h, add deferred-ideas note

server/db.js

@@ -713,6 +713,10 @@ export async function createUpload(u) {
   });
 }
 
+export async function setUploadArt(id, art) {
+  await db.execute({ sql: 'UPDATE uploads SET art = ? WHERE id = ?', args: [art, id] });
+}
+
 export async function getUpload(id) {
   const r = await db.execute({ sql: 'SELECT * FROM uploads WHERE id = ?', args: [id] });
   return r.rows[0] ? uploadRow(r.rows[0]) : null;