Blap README + curl-based release uploads

- Replace the element-web README with a Blap one (downloads/updating/building).
- release-codeberg: upload assets via curl instead of Node fetch, which times
  out (UND_ERR_HEADERS_TIMEOUT) on 300MB+ files.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

apps/desktop/scripts/release-codeberg.mjs

@@ -14,6 +14,8 @@
  *   resolves to it (that's what the updater feed URL points at).
  */
 import { readFile, readdir } from "node:fs/promises";
+import { statSync } from "node:fs";
+import { execFileSync } from "node:child_process";
 import { basename, join } from "node:path";
 import { fileURLToPath } from "node:url";
 
@@ -84,15 +86,27 @@ async function main() {
                 method: "DELETE",
             });
         }
-        const data = await readFile(join(distDir, file));
-        const form = new FormData();
-        form.append("attachment", new Blob([data]), name);
-        const res = await fetch(
-            `${API}/repos/${OWNER}/${REPO}/releases/${release.id}/assets?name=${encodeURIComponent(name)}`,
-            { method: "POST", headers: authHeaders, body: form },
+        const filePath = join(distDir, file);
+        const sizeMB = (statSync(filePath).size / 1e6).toFixed(0);
+        process.stdout.write(`Uploading ${name} (${sizeMB} MB)... `);
+        // Upload via curl: Node's built-in fetch (undici) times out on large files
+        // (UND_ERR_HEADERS_TIMEOUT). curl streams from disk with no such limit.
+        execFileSync(
+            "curl",
+            [
+                "-sS",
+                "--fail-with-body",
+                "-X",
+                "POST",
+                "-H",
+                `Authorization: token ${token}`,
+                "-F",
+                `attachment=@${filePath}`,
+                `${API}/repos/${OWNER}/${REPO}/releases/${release.id}/assets?name=${encodeURIComponent(name)}`,
+            ],
+            { stdio: ["ignore", "ignore", "inherit"] },
         );
-        if (!res.ok) throw new Error(`upload ${name} -> ${res.status} ${await res.text()}`);
-        console.log(`Uploaded ${name}`);
+        console.log("done");
     }
 
     console.log(`\nDone. Updater feed: https://codeberg.org/${OWNER}/${REPO}/releases/latest/download/latest.yml`);