cmp-firebase-connect

Wire a freshly scaffolded CMP/KMP app to its OWN real Firebase project — the #1 post-scaffold manual step. Use this when the user wants to connect their app to Firebase, or asks "connect my app to firebase", "set up google-services.json", "wire firebase", "create a firebase project for this app", "replace the placeholder firebase config", "get a real GoogleService-Info.plist", "my app still has the REPLACE_ME…