Fix release-smoke workflow YAML syntax error.

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/ci-create-smoke-fixtures.sh

@@ -0,0 +1,53 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ASSETS_DIR="${1:?usage: ci-create-smoke-fixtures.sh <assets-dir>}"
+VERSION="${2:?usage: ci-create-smoke-fixtures.sh <assets-dir> <version>}"
+
+mkdir -p "$ASSETS_DIR"
+
+for name in \
+  "FromChat-Setup-${VERSION}-windows-x64.exe" \
+  "FromChat-Setup-${VERSION}-windows-arm64.exe" \
+  "FromChat-${VERSION}-macOS-x64.dmg" \
+  "FromChat-${VERSION}-macOS-arm64.dmg" \
+  "FromChat-${VERSION}-linux-x64.deb" \
+  "FromChat-${VERSION}-linux-arm64.deb" \
+  "FromChat-${VERSION}-linux-x64.rpm" \
+  "FromChat-${VERSION}-linux-arm64.rpm" \
+  "FromChat-${VERSION}-linux-x64.AppImage" \
+  "FromChat-${VERSION}-linux-arm64.AppImage" \
+  "FromChat-${VERSION}-android-universal.apk"
+do
+  echo "placeholder" > "$ASSETS_DIR/$name"
+done
+
+python3 - "$ASSETS_DIR" <<'PY'
+import struct
+import pathlib
+import sys
+import zipfile
+
+root = pathlib.Path(sys.argv[1])
+for name, machine in [
+    ("FromChat-Setup-9.9.9-windows-x64.exe", 0x8664),
+    ("FromChat-Setup-9.9.9-windows-arm64.exe", 0xAA64),
+]:
+    path = root / name
+    data = bytearray(0x40)
+    struct.pack_into("<I", data, 0x3C, 0x40)
+    struct.pack_into("<H", data, 0x44, machine)
+    path.write_bytes(data)
+apk = root / "FromChat-9.9.9-android-universal.apk"
+with zipfile.ZipFile(apk, "w") as zf:
+    zf.writestr("lib/arm64-v8a/libdummy.so", b"\x00")
+    zf.writestr("lib/x86_64/libdummy.so", b"\x00")
+for deb in root.glob("*.deb"):
+    deb.write_bytes(b"!<arch>\n")
+for rpm in root.glob("*.rpm"):
+    rpm.write_bytes(b"\xed\xab\xee\xdb" + b"\x00" * 96)
+for appimage in root.glob("*.AppImage"):
+    appimage.write_bytes(b"\x7fELF" + b"\x00" * 16)
+for dmg in root.glob("*.dmg"):
+    dmg.write_bytes(b"UDIF" + b"\x00" * 32)
+PY