iso: fix packages.x86_64 (no inline comments; gstreamer-vaapi -> gst-plugin-va)

Inline comments after a package name broke kitty/flatpak (became invalid
names with trailing whitespace). gstreamer-vaapi was removed from Arch.
calamares is AUR-only -> commented pending a [tanin] rebuild decision.

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

iso/build-profile/airootfs/root/.bash_profile

@@ -0,0 +1,6 @@
+# Live ISO: on the first console (tty1), launch the TANINUX installer.
+# (On an installed system this file isn't present — Calamares' shellprocess
+#  strips the live-only bits from the target.)
+if [[ "$(tty)" == /dev/tty1 ]] && [[ -z "${WAYLAND_DISPLAY:-}" ]] && ! pgrep -x cage >/dev/null 2>&1; then
+  exec tanin-installer
+fi