Add Prism Launcher + Spotify flatpaks; AnythingLLM README note (no Flathub pkg)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

recipes/recipe.yml

@@ -39,8 +39,10 @@ modules:
           - org.libreoffice.LibreOffice
           - org.mozilla.Thunderbird
           - org.mozilla.firefox
+          - org.prismlauncher.PrismLauncher
           # -- Community / unverified listings (see README) --
           - com.makemkv.MakeMKV
+          - com.spotify.Client
           - io.github.hmlendea.geforcenow-electron # unofficial wrapper; 16:9/21:9 streams only
           - io.github.shiftey.Desktop # GitHub Desktop Linux fork; "shiftey" is correct
           - org.godotengine.Godot